Home / 91,414.02-137,124.02-31,441.88

Finding the Fourth Proportional to 91,414.02, 137,124.02 and 31,441.88

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Solution

The fourth proportional to 91,414.02, 137,124.02 and 31,441.88 is: 47,163.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,414.02 : 137,124.02 = 31,441.88 : x
  2. Step 2: Convert to fraction form
    91,414.02/137,124.02 = 31,441.88/x
  3. Step 3: Cross multiply
    91,414.02x = 137,124.02 × 31,441.88
  4. Step 4: Simplify right side
    91,414.02x = 4,311,436,981.96
  5. Step 5: Solve for x
    x = 4,311,436,981.96/91,414.02
  6. Step 6: Final answer
    x = 47,163.85

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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.