Home / 80,776.66-111,565.11-53,872.41

Finding the Fourth Proportional to 80,776.66, 111,565.11 and 53,872.41

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Solution

The fourth proportional to 80,776.66, 111,565.11 and 53,872.41 is: 74,406.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,776.66 : 111,565.11 = 53,872.41 : x
  2. Step 2: Convert to fraction form
    80,776.66/111,565.11 = 53,872.41/x
  3. Step 3: Cross multiply
    80,776.66x = 111,565.11 × 53,872.41
  4. Step 4: Simplify right side
    80,776.66x = 6,010,281,347.62
  5. Step 5: Solve for x
    x = 6,010,281,347.62/80,776.66
  6. Step 6: Final answer
    x = 74,406.16

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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.