Home / 91,979.87-137,986.91-32,005.85

Finding the Fourth Proportional to 91,979.87, 137,986.91 and 32,005.85

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Solution

The fourth proportional to 91,979.87, 137,986.91 and 32,005.85 is: 48,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,979.87 : 137,986.91 = 32,005.85 : x
  2. Step 2: Convert to fraction form
    91,979.87/137,986.91 = 32,005.85/x
  3. Step 3: Cross multiply
    91,979.87x = 137,986.91 × 32,005.85
  4. Step 4: Simplify right side
    91,979.87x = 4,416,387,493.46
  5. Step 5: Solve for x
    x = 4,416,387,493.46/91,979.87
  6. Step 6: Final answer
    x = 48,014.72

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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.