Home / 54,064-81,139.68-22,921.12

Finding the Fourth Proportional to 54,064, 81,139.68 and 22,921.12

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Solution

The fourth proportional to 54,064, 81,139.68 and 22,921.12 is: 34,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,064 : 81,139.68 = 22,921.12 : x
  2. Step 2: Convert to fraction form
    54,064/81,139.68 = 22,921.12/x
  3. Step 3: Cross multiply
    54,064x = 81,139.68 × 22,921.12
  4. Step 4: Simplify right side
    54,064x = 1,859,812,342.04
  5. Step 5: Solve for x
    x = 1,859,812,342.04/54,064
  6. Step 6: Final answer
    x = 34,400.20

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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.