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Finding the Fourth Proportional to 72,374.10, 108,566.55 and 25,620.90

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Solution

The fourth proportional to 72,374.10, 108,566.55 and 25,620.90 is: 38,433.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,374.10 : 108,566.55 = 25,620.90 : x
  2. Step 2: Convert to fraction form
    72,374.10/108,566.55 = 25,620.90/x
  3. Step 3: Cross multiply
    72,374.10x = 108,566.55 × 25,620.90
  4. Step 4: Simplify right side
    72,374.10x = 2,781,572,720.90
  5. Step 5: Solve for x
    x = 2,781,572,720.90/72,374.10
  6. Step 6: Final answer
    x = 38,433.26

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1.5x scale

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.