Home / 55,920.85-77,158.09-40,821.73

Finding the Fourth Proportional to 55,920.85, 77,158.09 and 40,821.73

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Solution

The fourth proportional to 55,920.85, 77,158.09 and 40,821.73 is: 56,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920.85 : 77,158.09 = 40,821.73 : x
  2. Step 2: Convert to fraction form
    55,920.85/77,158.09 = 40,821.73/x
  3. Step 3: Cross multiply
    55,920.85x = 77,158.09 × 40,821.73
  4. Step 4: Simplify right side
    55,920.85x = 3,149,726,717.30
  5. Step 5: Solve for x
    x = 3,149,726,717.30/55,920.85
  6. Step 6: Final answer
    x = 56,324.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.