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Finding the Fourth Proportional to 67,683.30, 101,508.50 and 28,240.74

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Solution

The fourth proportional to 67,683.30, 101,508.50 and 28,240.74 is: 42,354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,683.30 : 101,508.50 = 28,240.74 : x
  2. Step 2: Convert to fraction form
    67,683.30/101,508.50 = 28,240.74/x
  3. Step 3: Cross multiply
    67,683.30x = 101,508.50 × 28,240.74
  4. Step 4: Simplify right side
    67,683.30x = 2,866,675,156.29
  5. Step 5: Solve for x
    x = 2,866,675,156.29/67,683.30
  6. Step 6: Final answer
    x = 42,354.25

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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.