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Finding the Fourth Proportional to 78,437.52, 108,243.27 and 44,910

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Solution

The fourth proportional to 78,437.52, 108,243.27 and 44,910 is: 61,975.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,437.52 : 108,243.27 = 44,910 : x
  2. Step 2: Convert to fraction form
    78,437.52/108,243.27 = 44,910/x
  3. Step 3: Cross multiply
    78,437.52x = 108,243.27 × 44,910
  4. Step 4: Simplify right side
    78,437.52x = 4,861,205,255.70
  5. Step 5: Solve for x
    x = 4,861,205,255.70/78,437.52
  6. Step 6: Final answer
    x = 61,975.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.