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Finding the Fourth Proportional to 77,821.50, 116,545.20 and 44,440.50

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Solution

The fourth proportional to 77,821.50, 116,545.20 and 44,440.50 is: 66,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,821.50 : 116,545.20 = 44,440.50 : x
  2. Step 2: Convert to fraction form
    77,821.50/116,545.20 = 44,440.50/x
  3. Step 3: Cross multiply
    77,821.50x = 116,545.20 × 44,440.50
  4. Step 4: Simplify right side
    77,821.50x = 5,179,326,960.60
  5. Step 5: Solve for x
    x = 5,179,326,960.60/77,821.50
  6. Step 6: Final answer
    x = 66,553.93

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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.