Home / 84,916.87-127,375.30-38,115.07

Finding the Fourth Proportional to 84,916.87, 127,375.30 and 38,115.07

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Solution

The fourth proportional to 84,916.87, 127,375.30 and 38,115.07 is: 57,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,916.87 : 127,375.30 = 38,115.07 : x
  2. Step 2: Convert to fraction form
    84,916.87/127,375.30 = 38,115.07/x
  3. Step 3: Cross multiply
    84,916.87x = 127,375.30 × 38,115.07
  4. Step 4: Simplify right side
    84,916.87x = 4,854,918,204.98
  5. Step 5: Solve for x
    x = 4,854,918,204.98/84,916.87
  6. Step 6: Final answer
    x = 57,172.60

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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.