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Finding the Fourth Proportional to 42,527.40, 63,815.40 and 29,389.20

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Solution

The fourth proportional to 42,527.40, 63,815.40 and 29,389.20 is: 44,100.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,527.40 : 63,815.40 = 29,389.20 : x
  2. Step 2: Convert to fraction form
    42,527.40/63,815.40 = 29,389.20/x
  3. Step 3: Cross multiply
    42,527.40x = 63,815.40 × 29,389.20
  4. Step 4: Simplify right side
    42,527.40x = 1,875,483,553.68
  5. Step 5: Solve for x
    x = 1,875,483,553.68/42,527.40
  6. Step 6: Final answer
    x = 44,100.59

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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.