Home / 66,086.30-98,999.85-39,712.70

Finding the Fourth Proportional to 66,086.30, 98,999.85 and 39,712.70

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Solution

The fourth proportional to 66,086.30, 98,999.85 and 39,712.70 is: 59,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086.30 : 98,999.85 = 39,712.70 : x
  2. Step 2: Convert to fraction form
    66,086.30/98,999.85 = 39,712.70/x
  3. Step 3: Cross multiply
    66,086.30x = 98,999.85 × 39,712.70
  4. Step 4: Simplify right side
    66,086.30x = 3,931,551,343.10
  5. Step 5: Solve for x
    x = 3,931,551,343.10/66,086.30
  6. Step 6: Final answer
    x = 59,491.17

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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.