Home / 54,666.18-81,999.29-42,204.40

Finding the Fourth Proportional to 54,666.18, 81,999.29 and 42,204.40

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Solution

The fourth proportional to 54,666.18, 81,999.29 and 42,204.40 is: 63,306.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,666.18 : 81,999.29 = 42,204.40 : x
  2. Step 2: Convert to fraction form
    54,666.18/81,999.29 = 42,204.40/x
  3. Step 3: Cross multiply
    54,666.18x = 81,999.29 × 42,204.40
  4. Step 4: Simplify right side
    54,666.18x = 3,460,730,834.88
  5. Step 5: Solve for x
    x = 3,460,730,834.88/54,666.18
  6. Step 6: Final answer
    x = 63,306.62

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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.