Home / 81,040.10-121,569.85-24,872.86

Finding the Fourth Proportional to 81,040.10, 121,569.85 and 24,872.86

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Solution

The fourth proportional to 81,040.10, 121,569.85 and 24,872.86 is: 37,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,040.10 : 121,569.85 = 24,872.86 : x
  2. Step 2: Convert to fraction form
    81,040.10/121,569.85 = 24,872.86/x
  3. Step 3: Cross multiply
    81,040.10x = 121,569.85 × 24,872.86
  4. Step 4: Simplify right side
    81,040.10x = 3,023,789,859.27
  5. Step 5: Solve for x
    x = 3,023,789,859.27/81,040.10
  6. Step 6: Final answer
    x = 37,312.27

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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.