Home / 81,174.42-112,035.15-47,193.71

Finding the Fourth Proportional to 81,174.42, 112,035.15 and 47,193.71

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Solution

The fourth proportional to 81,174.42, 112,035.15 and 47,193.71 is: 65,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174.42 : 112,035.15 = 47,193.71 : x
  2. Step 2: Convert to fraction form
    81,174.42/112,035.15 = 47,193.71/x
  3. Step 3: Cross multiply
    81,174.42x = 112,035.15 × 47,193.71
  4. Step 4: Simplify right side
    81,174.42x = 5,287,353,818.73
  5. Step 5: Solve for x
    x = 5,287,353,818.73/81,174.42
  6. Step 6: Final answer
    x = 65,135.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.