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Finding the Fourth Proportional to 88,545.60, 132,818.40 and 51,220.80

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Solution

The fourth proportional to 88,545.60, 132,818.40 and 51,220.80 is: 76,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,545.60 : 132,818.40 = 51,220.80 : x
  2. Step 2: Convert to fraction form
    88,545.60/132,818.40 = 51,220.80/x
  3. Step 3: Cross multiply
    88,545.60x = 132,818.40 × 51,220.80
  4. Step 4: Simplify right side
    88,545.60x = 6,803,064,702.72
  5. Step 5: Solve for x
    x = 6,803,064,702.72/88,545.60
  6. Step 6: Final answer
    x = 76,831.20

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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.