Home / 91,800.96-137,708.07-38,439.25

Finding the Fourth Proportional to 91,800.96, 137,708.07 and 38,439.25

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Solution

The fourth proportional to 91,800.96, 137,708.07 and 38,439.25 is: 57,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,800.96 : 137,708.07 = 38,439.25 : x
  2. Step 2: Convert to fraction form
    91,800.96/137,708.07 = 38,439.25/x
  3. Step 3: Cross multiply
    91,800.96x = 137,708.07 × 38,439.25
  4. Step 4: Simplify right side
    91,800.96x = 5,293,394,929.75
  5. Step 5: Solve for x
    x = 5,293,394,929.75/91,800.96
  6. Step 6: Final answer
    x = 57,661.65

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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.