Home / 54,122.20-81,140.10-22,931.80

Finding the Fourth Proportional to 54,122.20, 81,140.10 and 22,931.80

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Solution

The fourth proportional to 54,122.20, 81,140.10 and 22,931.80 is: 34,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,122.20 : 81,140.10 = 22,931.80 : x
  2. Step 2: Convert to fraction form
    54,122.20/81,140.10 = 22,931.80/x
  3. Step 3: Cross multiply
    54,122.20x = 81,140.10 × 22,931.80
  4. Step 4: Simplify right side
    54,122.20x = 1,860,688,545.18
  5. Step 5: Solve for x
    x = 1,860,688,545.18/54,122.20
  6. Step 6: Final answer
    x = 34,379.40

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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.