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Finding the Fourth Proportional to 54,265.68, 81,376.56 and 20,967.12

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Solution

The fourth proportional to 54,265.68, 81,376.56 and 20,967.12 is: 31,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,265.68 : 81,376.56 = 20,967.12 : x
  2. Step 2: Convert to fraction form
    54,265.68/81,376.56 = 20,967.12/x
  3. Step 3: Cross multiply
    54,265.68x = 81,376.56 × 20,967.12
  4. Step 4: Simplify right side
    54,265.68x = 1,706,232,098.71
  5. Step 5: Solve for x
    x = 1,706,232,098.71/54,265.68
  6. Step 6: Final answer
    x = 31,442.20

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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.