Home / 80,838.57-111,560.67-45,028.59

Finding the Fourth Proportional to 80,838.57, 111,560.67 and 45,028.59

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Solution

The fourth proportional to 80,838.57, 111,560.67 and 45,028.59 is: 62,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838.57 : 111,560.67 = 45,028.59 : x
  2. Step 2: Convert to fraction form
    80,838.57/111,560.67 = 45,028.59/x
  3. Step 3: Cross multiply
    80,838.57x = 111,560.67 × 45,028.59
  4. Step 4: Simplify right side
    80,838.57x = 5,023,419,444.41
  5. Step 5: Solve for x
    x = 5,023,419,444.41/80,838.57
  6. Step 6: Final answer
    x = 62,141.37

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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.