Home / 82,877.50-124,105.02-54,711.57

Finding the Fourth Proportional to 82,877.50, 124,105.02 and 54,711.57

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Solution

The fourth proportional to 82,877.50, 124,105.02 and 54,711.57 is: 81,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,877.50 : 124,105.02 = 54,711.57 : x
  2. Step 2: Convert to fraction form
    82,877.50/124,105.02 = 54,711.57/x
  3. Step 3: Cross multiply
    82,877.50x = 124,105.02 × 54,711.57
  4. Step 4: Simplify right side
    82,877.50x = 6,789,980,489.08
  5. Step 5: Solve for x
    x = 6,789,980,489.08/82,877.50
  6. Step 6: Final answer
    x = 81,927.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.