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Finding the Fourth Proportional to 54,019.52, 81,038.79 and 18,472.48

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Solution

The fourth proportional to 54,019.52, 81,038.79 and 18,472.48 is: 27,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,019.52 : 81,038.79 = 18,472.48 : x
  2. Step 2: Convert to fraction form
    54,019.52/81,038.79 = 18,472.48/x
  3. Step 3: Cross multiply
    54,019.52x = 81,038.79 × 18,472.48
  4. Step 4: Simplify right side
    54,019.52x = 1,496,987,714.95
  5. Step 5: Solve for x
    x = 1,496,987,714.95/54,019.52
  6. Step 6: Final answer
    x = 27,711.98

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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.