Home / 87,861.38-121,248.93-47,575.64

Finding the Fourth Proportional to 87,861.38, 121,248.93 and 47,575.64

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Solution

The fourth proportional to 87,861.38, 121,248.93 and 47,575.64 is: 65,654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,861.38 : 121,248.93 = 47,575.64 : x
  2. Step 2: Convert to fraction form
    87,861.38/121,248.93 = 47,575.64/x
  3. Step 3: Cross multiply
    87,861.38x = 121,248.93 × 47,575.64
  4. Step 4: Simplify right side
    87,861.38x = 5,768,495,444.07
  5. Step 5: Solve for x
    x = 5,768,495,444.07/87,861.38
  6. Step 6: Final answer
    x = 65,654.51

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1.5x scale

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.