Home / 91,572.12-137,397.64-49,443.84

Finding the Fourth Proportional to 91,572.12, 137,397.64 and 49,443.84

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Solution

The fourth proportional to 91,572.12, 137,397.64 and 49,443.84 is: 74,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,572.12 : 137,397.64 = 49,443.84 : x
  2. Step 2: Convert to fraction form
    91,572.12/137,397.64 = 49,443.84/x
  3. Step 3: Cross multiply
    91,572.12x = 137,397.64 × 49,443.84
  4. Step 4: Simplify right side
    91,572.12x = 6,793,466,928.54
  5. Step 5: Solve for x
    x = 6,793,466,928.54/91,572.12
  6. Step 6: Final answer
    x = 74,187.07

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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.