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Finding the Fourth Proportional to 172,374.60, 258,561.84 and 54,055.02

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Solution

The fourth proportional to 172,374.60, 258,561.84 and 54,055.02 is: 81,082.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,374.60 : 258,561.84 = 54,055.02 : x
  2. Step 2: Convert to fraction form
    172,374.60/258,561.84 = 54,055.02/x
  3. Step 3: Cross multiply
    172,374.60x = 258,561.84 × 54,055.02
  4. Step 4: Simplify right side
    172,374.60x = 13,976,565,432.44
  5. Step 5: Solve for x
    x = 13,976,565,432.44/172,374.60
  6. Step 6: Final answer
    x = 81,082.51

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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.