Home / 81,462.09-112,472.42-50,881.68

Finding the Fourth Proportional to 81,462.09, 112,472.42 and 50,881.68

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Solution

The fourth proportional to 81,462.09, 112,472.42 and 50,881.68 is: 70,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,462.09 : 112,472.42 = 50,881.68 : x
  2. Step 2: Convert to fraction form
    81,462.09/112,472.42 = 50,881.68/x
  3. Step 3: Cross multiply
    81,462.09x = 112,472.42 × 50,881.68
  4. Step 4: Simplify right side
    81,462.09x = 5,722,785,428.86
  5. Step 5: Solve for x
    x = 5,722,785,428.86/81,462.09
  6. Step 6: Final answer
    x = 70,250.90

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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.