Home / 80,123.42-110,604.36-49,923.66

Finding the Fourth Proportional to 80,123.42, 110,604.36 and 49,923.66

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Solution

The fourth proportional to 80,123.42, 110,604.36 and 49,923.66 is: 68,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,123.42 : 110,604.36 = 49,923.66 : x
  2. Step 2: Convert to fraction form
    80,123.42/110,604.36 = 49,923.66/x
  3. Step 3: Cross multiply
    80,123.42x = 110,604.36 × 49,923.66
  4. Step 4: Simplify right side
    80,123.42x = 5,521,774,162.17
  5. Step 5: Solve for x
    x = 5,521,774,162.17/80,123.42
  6. Step 6: Final answer
    x = 68,915.86

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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.