Home / 86,482.20-129,723.30-47,116.20

Finding the Fourth Proportional to 86,482.20, 129,723.30 and 47,116.20

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Solution

The fourth proportional to 86,482.20, 129,723.30 and 47,116.20 is: 70,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,482.20 : 129,723.30 = 47,116.20 : x
  2. Step 2: Convert to fraction form
    86,482.20/129,723.30 = 47,116.20/x
  3. Step 3: Cross multiply
    86,482.20x = 129,723.30 × 47,116.20
  4. Step 4: Simplify right side
    86,482.20x = 6,112,068,947.46
  5. Step 5: Solve for x
    x = 6,112,068,947.46/86,482.20
  6. Step 6: Final answer
    x = 70,674.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.