Home / 89,877.03-124,008.20-54,942.87

Finding the Fourth Proportional to 89,877.03, 124,008.20 and 54,942.87

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Solution

The fourth proportional to 89,877.03, 124,008.20 and 54,942.87 is: 75,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,877.03 : 124,008.20 = 54,942.87 : x
  2. Step 2: Convert to fraction form
    89,877.03/124,008.20 = 54,942.87/x
  3. Step 3: Cross multiply
    89,877.03x = 124,008.20 × 54,942.87
  4. Step 4: Simplify right side
    89,877.03x = 6,813,366,136.82
  5. Step 5: Solve for x
    x = 6,813,366,136.82/89,877.03
  6. Step 6: Final answer
    x = 75,807.65

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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.