Home / 84,876.60-127,329.30-25,711.80

Finding the Fourth Proportional to 84,876.60, 127,329.30 and 25,711.80

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Solution

The fourth proportional to 84,876.60, 127,329.30 and 25,711.80 is: 38,572.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,876.60 : 127,329.30 = 25,711.80 : x
  2. Step 2: Convert to fraction form
    84,876.60/127,329.30 = 25,711.80/x
  3. Step 3: Cross multiply
    84,876.60x = 127,329.30 × 25,711.80
  4. Step 4: Simplify right side
    84,876.60x = 3,273,865,495.74
  5. Step 5: Solve for x
    x = 3,273,865,495.74/84,876.60
  6. Step 6: Final answer
    x = 38,572.06

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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.