Home / 88,059.88-121,569.78-67,872.52

Finding the Fourth Proportional to 88,059.88, 121,569.78 and 67,872.52

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Solution

The fourth proportional to 88,059.88, 121,569.78 and 67,872.52 is: 93,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,059.88 : 121,569.78 = 67,872.52 : x
  2. Step 2: Convert to fraction form
    88,059.88/121,569.78 = 67,872.52/x
  3. Step 3: Cross multiply
    88,059.88x = 121,569.78 × 67,872.52
  4. Step 4: Simplify right side
    88,059.88x = 8,251,247,324.45
  5. Step 5: Solve for x
    x = 8,251,247,324.45/88,059.88
  6. Step 6: Final answer
    x = 93,700.42

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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.