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Finding the Fourth Proportional to 54,154.98, 81,234.90 and 19,098.18

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Solution

The fourth proportional to 54,154.98, 81,234.90 and 19,098.18 is: 28,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,154.98 : 81,234.90 = 19,098.18 : x
  2. Step 2: Convert to fraction form
    54,154.98/81,234.90 = 19,098.18/x
  3. Step 3: Cross multiply
    54,154.98x = 81,234.90 × 19,098.18
  4. Step 4: Simplify right side
    54,154.98x = 1,551,438,742.48
  5. Step 5: Solve for x
    x = 1,551,438,742.48/54,154.98
  6. Step 6: Final answer
    x = 28,648.13

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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.