Home / 91,859.20-137,780.70-25,293.40

Finding the Fourth Proportional to 91,859.20, 137,780.70 and 25,293.40

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Solution

The fourth proportional to 91,859.20, 137,780.70 and 25,293.40 is: 37,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,859.20 : 137,780.70 = 25,293.40 : x
  2. Step 2: Convert to fraction form
    91,859.20/137,780.70 = 25,293.40/x
  3. Step 3: Cross multiply
    91,859.20x = 137,780.70 × 25,293.40
  4. Step 4: Simplify right side
    91,859.20x = 3,484,942,357.38
  5. Step 5: Solve for x
    x = 3,484,942,357.38/91,859.20
  6. Step 6: Final answer
    x = 37,937.87

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1.5x scale

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.