Home / 91,622.90-137,348.15-49,439.76

Finding the Fourth Proportional to 91,622.90, 137,348.15 and 49,439.76

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Solution

The fourth proportional to 91,622.90, 137,348.15 and 49,439.76 is: 74,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,622.90 : 137,348.15 = 49,439.76 : x
  2. Step 2: Convert to fraction form
    91,622.90/137,348.15 = 49,439.76/x
  3. Step 3: Cross multiply
    91,622.90x = 137,348.15 × 49,439.76
  4. Step 4: Simplify right side
    91,622.90x = 6,790,459,325.25
  5. Step 5: Solve for x
    x = 6,790,459,325.25/91,622.90
  6. Step 6: Final answer
    x = 74,113.13

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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.