Home / 87,346.49-120,411.09-61,773.17

Finding the Fourth Proportional to 87,346.49, 120,411.09 and 61,773.17

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Solution

The fourth proportional to 87,346.49, 120,411.09 and 61,773.17 is: 85,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.49 : 120,411.09 = 61,773.17 : x
  2. Step 2: Convert to fraction form
    87,346.49/120,411.09 = 61,773.17/x
  3. Step 3: Cross multiply
    87,346.49x = 120,411.09 × 61,773.17
  4. Step 4: Simplify right side
    87,346.49x = 7,438,174,130.40
  5. Step 5: Solve for x
    x = 7,438,174,130.40/87,346.49
  6. Step 6: Final answer
    x = 85,157.11

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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.