Home / 86,574.20-129,861.30-47,208.20

Finding the Fourth Proportional to 86,574.20, 129,861.30 and 47,208.20

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Solution

The fourth proportional to 86,574.20, 129,861.30 and 47,208.20 is: 70,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,574.20 : 129,861.30 = 47,208.20 : x
  2. Step 2: Convert to fraction form
    86,574.20/129,861.30 = 47,208.20/x
  3. Step 3: Cross multiply
    86,574.20x = 129,861.30 × 47,208.20
  4. Step 4: Simplify right side
    86,574.20x = 6,130,518,222.66
  5. Step 5: Solve for x
    x = 6,130,518,222.66/86,574.20
  6. Step 6: Final answer
    x = 70,812.30

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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.