Home / 87,793.67-121,134.20-53,337.71

Finding the Fourth Proportional to 87,793.67, 121,134.20 and 53,337.71

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Solution

The fourth proportional to 87,793.67, 121,134.20 and 53,337.71 is: 73,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,793.67 : 121,134.20 = 53,337.71 : x
  2. Step 2: Convert to fraction form
    87,793.67/121,134.20 = 53,337.71/x
  3. Step 3: Cross multiply
    87,793.67x = 121,134.20 × 53,337.71
  4. Step 4: Simplify right side
    87,793.67x = 6,461,020,866.83
  5. Step 5: Solve for x
    x = 6,461,020,866.83/87,793.67
  6. Step 6: Final answer
    x = 73,593.24

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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.