Home / 87,951.03-121,372.52-52,158.75

Finding the Fourth Proportional to 87,951.03, 121,372.52 and 52,158.75

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Solution

The fourth proportional to 87,951.03, 121,372.52 and 52,158.75 is: 71,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.03 : 121,372.52 = 52,158.75 : x
  2. Step 2: Convert to fraction form
    87,951.03/121,372.52 = 52,158.75/x
  3. Step 3: Cross multiply
    87,951.03x = 121,372.52 × 52,158.75
  4. Step 4: Simplify right side
    87,951.03x = 6,330,638,666.76
  5. Step 5: Solve for x
    x = 6,330,638,666.76/87,951.03
  6. Step 6: Final answer
    x = 71,979.13

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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.