Home / 87,532.54-120,788.08-51,715.76

Finding the Fourth Proportional to 87,532.54, 120,788.08 and 51,715.76

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Solution

The fourth proportional to 87,532.54, 120,788.08 and 51,715.76 is: 71,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,532.54 : 120,788.08 = 51,715.76 : x
  2. Step 2: Convert to fraction form
    87,532.54/120,788.08 = 51,715.76/x
  3. Step 3: Cross multiply
    87,532.54x = 120,788.08 × 51,715.76
  4. Step 4: Simplify right side
    87,532.54x = 6,246,647,356.14
  5. Step 5: Solve for x
    x = 6,246,647,356.14/87,532.54
  6. Step 6: Final answer
    x = 71,363.72

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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.