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Finding the Fourth Proportional to 75,701.48, 103,711.48 and 72,863.88

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Solution

The fourth proportional to 75,701.48, 103,711.48 and 72,863.88 is: 99,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,701.48 : 103,711.48 = 72,863.88 : x
  2. Step 2: Convert to fraction form
    75,701.48/103,711.48 = 72,863.88/x
  3. Step 3: Cross multiply
    75,701.48x = 103,711.48 × 72,863.88
  4. Step 4: Simplify right side
    75,701.48x = 7,556,820,833.34
  5. Step 5: Solve for x
    x = 7,556,820,833.34/75,701.48
  6. Step 6: Final answer
    x = 99,823.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.