Home / 87,684.96-120,925.81-57,459.31

Finding the Fourth Proportional to 87,684.96, 120,925.81 and 57,459.31

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Solution

The fourth proportional to 87,684.96, 120,925.81 and 57,459.31 is: 79,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,684.96 : 120,925.81 = 57,459.31 : x
  2. Step 2: Convert to fraction form
    87,684.96/120,925.81 = 57,459.31/x
  3. Step 3: Cross multiply
    87,684.96x = 120,925.81 × 57,459.31
  4. Step 4: Simplify right side
    87,684.96x = 6,948,313,373.30
  5. Step 5: Solve for x
    x = 6,948,313,373.30/87,684.96
  6. Step 6: Final answer
    x = 79,241.79

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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.