Home / 87,130.91-120,016.60-61,593.35

Finding the Fourth Proportional to 87,130.91, 120,016.60 and 61,593.35

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Solution

The fourth proportional to 87,130.91, 120,016.60 and 61,593.35 is: 84,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,130.91 : 120,016.60 = 61,593.35 : x
  2. Step 2: Convert to fraction form
    87,130.91/120,016.60 = 61,593.35/x
  3. Step 3: Cross multiply
    87,130.91x = 120,016.60 × 61,593.35
  4. Step 4: Simplify right side
    87,130.91x = 7,392,224,376.58
  5. Step 5: Solve for x
    x = 7,392,224,376.58/87,130.91
  6. Step 6: Final answer
    x = 84,840.44

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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.