Home / 91,391.20-137,054.40-32,228.80

Finding the Fourth Proportional to 91,391.20, 137,054.40 and 32,228.80

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Solution

The fourth proportional to 91,391.20, 137,054.40 and 32,228.80 is: 48,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,391.20 : 137,054.40 = 32,228.80 : x
  2. Step 2: Convert to fraction form
    91,391.20/137,054.40 = 32,228.80/x
  3. Step 3: Cross multiply
    91,391.20x = 137,054.40 × 32,228.80
  4. Step 4: Simplify right side
    91,391.20x = 4,417,098,846.72
  5. Step 5: Solve for x
    x = 4,417,098,846.72/91,391.20
  6. Step 6: Final answer
    x = 48,331.77

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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.