Home / 89,938.74-124,112.21-49,651.64

Finding the Fourth Proportional to 89,938.74, 124,112.21 and 49,651.64

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Solution

The fourth proportional to 89,938.74, 124,112.21 and 49,651.64 is: 68,517.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,938.74 : 124,112.21 = 49,651.64 : x
  2. Step 2: Convert to fraction form
    89,938.74/124,112.21 = 49,651.64/x
  3. Step 3: Cross multiply
    89,938.74x = 124,112.21 × 49,651.64
  4. Step 4: Simplify right side
    89,938.74x = 6,162,373,901.71
  5. Step 5: Solve for x
    x = 6,162,373,901.71/89,938.74
  6. Step 6: Final answer
    x = 68,517.46

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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.