Home / 54,363.60-81,545.40-38,617.20

Finding the Fourth Proportional to 54,363.60, 81,545.40 and 38,617.20

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Solution

The fourth proportional to 54,363.60, 81,545.40 and 38,617.20 is: 57,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,363.60 : 81,545.40 = 38,617.20 : x
  2. Step 2: Convert to fraction form
    54,363.60/81,545.40 = 38,617.20/x
  3. Step 3: Cross multiply
    54,363.60x = 81,545.40 × 38,617.20
  4. Step 4: Simplify right side
    54,363.60x = 3,149,055,020.88
  5. Step 5: Solve for x
    x = 3,149,055,020.88/54,363.60
  6. Step 6: Final answer
    x = 57,925.80

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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.