Home / 86,347.30-129,550.36-52,680.72

Finding the Fourth Proportional to 86,347.30, 129,550.36 and 52,680.72

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Solution

The fourth proportional to 86,347.30, 129,550.36 and 52,680.72 is: 79,039.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,347.30 : 129,550.36 = 52,680.72 : x
  2. Step 2: Convert to fraction form
    86,347.30/129,550.36 = 52,680.72/x
  3. Step 3: Cross multiply
    86,347.30x = 129,550.36 × 52,680.72
  4. Step 4: Simplify right side
    86,347.30x = 6,824,806,241.06
  5. Step 5: Solve for x
    x = 6,824,806,241.06/86,347.30
  6. Step 6: Final answer
    x = 79,039.02

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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.