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Finding the Fourth Proportional to 45,259.28, 67,863 and 42,650

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Solution

The fourth proportional to 45,259.28, 67,863 and 42,650 is: 63,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,259.28 : 67,863 = 42,650 : x
  2. Step 2: Convert to fraction form
    45,259.28/67,863 = 42,650/x
  3. Step 3: Cross multiply
    45,259.28x = 67,863 × 42,650
  4. Step 4: Simplify right side
    45,259.28x = 2,894,356,950
  5. Step 5: Solve for x
    x = 2,894,356,950/45,259.28
  6. Step 6: Final answer
    x = 63,950.57

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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.