Home / 87,276.92-120,439.02-53,342.18

Finding the Fourth Proportional to 87,276.92, 120,439.02 and 53,342.18

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Solution

The fourth proportional to 87,276.92, 120,439.02 and 53,342.18 is: 73,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,276.92 : 120,439.02 = 53,342.18 : x
  2. Step 2: Convert to fraction form
    87,276.92/120,439.02 = 53,342.18/x
  3. Step 3: Cross multiply
    87,276.92x = 120,439.02 × 53,342.18
  4. Step 4: Simplify right side
    87,276.92x = 6,424,479,883.86
  5. Step 5: Solve for x
    x = 6,424,479,883.86/87,276.92
  6. Step 6: Final answer
    x = 73,610.30

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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.