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Finding the Fourth Proportional to 84,737.20, 127,251.60 and 59,951.20

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Solution

The fourth proportional to 84,737.20, 127,251.60 and 59,951.20 is: 90,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,737.20 : 127,251.60 = 59,951.20 : x
  2. Step 2: Convert to fraction form
    84,737.20/127,251.60 = 59,951.20/x
  3. Step 3: Cross multiply
    84,737.20x = 127,251.60 × 59,951.20
  4. Step 4: Simplify right side
    84,737.20x = 7,628,886,121.92
  5. Step 5: Solve for x
    x = 7,628,886,121.92/84,737.20
  6. Step 6: Final answer
    x = 90,029.95

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1.5x scale

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.