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Finding the Fourth Proportional to 54,459.96, 81,689.70 and 15,017.40

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Solution

The fourth proportional to 54,459.96, 81,689.70 and 15,017.40 is: 22,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459.96 : 81,689.70 = 15,017.40 : x
  2. Step 2: Convert to fraction form
    54,459.96/81,689.70 = 15,017.40/x
  3. Step 3: Cross multiply
    54,459.96x = 81,689.70 × 15,017.40
  4. Step 4: Simplify right side
    54,459.96x = 1,226,766,900.78
  5. Step 5: Solve for x
    x = 1,226,766,900.78/54,459.96
  6. Step 6: Final answer
    x = 22,526.03

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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.