Home / 87,607.58-120,823.99-74,061.68

Finding the Fourth Proportional to 87,607.58, 120,823.99 and 74,061.68

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Solution

The fourth proportional to 87,607.58, 120,823.99 and 74,061.68 is: 102,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,607.58 : 120,823.99 = 74,061.68 : x
  2. Step 2: Convert to fraction form
    87,607.58/120,823.99 = 74,061.68/x
  3. Step 3: Cross multiply
    87,607.58x = 120,823.99 × 74,061.68
  4. Step 4: Simplify right side
    87,607.58x = 8,948,426,894.43
  5. Step 5: Solve for x
    x = 8,948,426,894.43/87,607.58
  6. Step 6: Final answer
    x = 102,142.16

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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.