Home / 80,663.46-111,158.37-60,543.06

Finding the Fourth Proportional to 80,663.46, 111,158.37 and 60,543.06

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Solution

The fourth proportional to 80,663.46, 111,158.37 and 60,543.06 is: 83,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,663.46 : 111,158.37 = 60,543.06 : x
  2. Step 2: Convert to fraction form
    80,663.46/111,158.37 = 60,543.06/x
  3. Step 3: Cross multiply
    80,663.46x = 111,158.37 × 60,543.06
  4. Step 4: Simplify right side
    80,663.46x = 6,729,867,864.41
  5. Step 5: Solve for x
    x = 6,729,867,864.41/80,663.46
  6. Step 6: Final answer
    x = 83,431.43

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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.