Home / 65,331.20-98,115.60-39,087.20

Finding the Fourth Proportional to 65,331.20, 98,115.60 and 39,087.20

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Solution

The fourth proportional to 65,331.20, 98,115.60 and 39,087.20 is: 58,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,331.20 : 98,115.60 = 39,087.20 : x
  2. Step 2: Convert to fraction form
    65,331.20/98,115.60 = 39,087.20/x
  3. Step 3: Cross multiply
    65,331.20x = 98,115.60 × 39,087.20
  4. Step 4: Simplify right side
    65,331.20x = 3,835,064,080.32
  5. Step 5: Solve for x
    x = 3,835,064,080.32/65,331.20
  6. Step 6: Final answer
    x = 58,701.88

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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.