Home / 91,561.70-137,233.20-47,165.60

Finding the Fourth Proportional to 91,561.70, 137,233.20 and 47,165.60

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Solution

The fourth proportional to 91,561.70, 137,233.20 and 47,165.60 is: 70,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,561.70 : 137,233.20 = 47,165.60 : x
  2. Step 2: Convert to fraction form
    91,561.70/137,233.20 = 47,165.60/x
  3. Step 3: Cross multiply
    91,561.70x = 137,233.20 × 47,165.60
  4. Step 4: Simplify right side
    91,561.70x = 6,472,686,217.92
  5. Step 5: Solve for x
    x = 6,472,686,217.92/91,561.70
  6. Step 6: Final answer
    x = 70,692.07

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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.