Home / 80,857.81-111,630.05-54,045.73

Finding the Fourth Proportional to 80,857.81, 111,630.05 and 54,045.73

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Solution

The fourth proportional to 80,857.81, 111,630.05 and 54,045.73 is: 74,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,857.81 : 111,630.05 = 54,045.73 : x
  2. Step 2: Convert to fraction form
    80,857.81/111,630.05 = 54,045.73/x
  3. Step 3: Cross multiply
    80,857.81x = 111,630.05 × 54,045.73
  4. Step 4: Simplify right side
    80,857.81x = 6,033,127,542.19
  5. Step 5: Solve for x
    x = 6,033,127,542.19/80,857.81
  6. Step 6: Final answer
    x = 74,614.04

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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.