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Finding the Fourth Proportional to 54,482.52, 81,717.70 and 18,937.70

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Solution

The fourth proportional to 54,482.52, 81,717.70 and 18,937.70 is: 28,404.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,482.52 : 81,717.70 = 18,937.70 : x
  2. Step 2: Convert to fraction form
    54,482.52/81,717.70 = 18,937.70/x
  3. Step 3: Cross multiply
    54,482.52x = 81,717.70 × 18,937.70
  4. Step 4: Simplify right side
    54,482.52x = 1,547,544,878.70
  5. Step 5: Solve for x
    x = 1,547,544,878.70/54,482.52
  6. Step 6: Final answer
    x = 28,404.43

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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.