Home / 82,543.66-123,704.61-45,047.56

Finding the Fourth Proportional to 82,543.66, 123,704.61 and 45,047.56

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Solution

The fourth proportional to 82,543.66, 123,704.61 and 45,047.56 is: 67,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,543.66 : 123,704.61 = 45,047.56 : x
  2. Step 2: Convert to fraction form
    82,543.66/123,704.61 = 45,047.56/x
  3. Step 3: Cross multiply
    82,543.66x = 123,704.61 × 45,047.56
  4. Step 4: Simplify right side
    82,543.66x = 5,572,590,841.25
  5. Step 5: Solve for x
    x = 5,572,590,841.25/82,543.66
  6. Step 6: Final answer
    x = 67,510.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.