Home / 87,773.29-121,127.15-47,487.03

Finding the Fourth Proportional to 87,773.29, 121,127.15 and 47,487.03

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Solution

The fourth proportional to 87,773.29, 121,127.15 and 47,487.03 is: 65,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.29 : 121,127.15 = 47,487.03 : x
  2. Step 2: Convert to fraction form
    87,773.29/121,127.15 = 47,487.03/x
  3. Step 3: Cross multiply
    87,773.29x = 121,127.15 × 47,487.03
  4. Step 4: Simplify right side
    87,773.29x = 5,751,968,003.24
  5. Step 5: Solve for x
    x = 5,751,968,003.24/87,773.29
  6. Step 6: Final answer
    x = 65,532.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.