Home / 84,543.11-126,861.33-47,124.24

Finding the Fourth Proportional to 84,543.11, 126,861.33 and 47,124.24

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Solution

The fourth proportional to 84,543.11, 126,861.33 and 47,124.24 is: 70,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,543.11 : 126,861.33 = 47,124.24 : x
  2. Step 2: Convert to fraction form
    84,543.11/126,861.33 = 47,124.24/x
  3. Step 3: Cross multiply
    84,543.11x = 126,861.33 × 47,124.24
  4. Step 4: Simplify right side
    84,543.11x = 5,978,243,761.64
  5. Step 5: Solve for x
    x = 5,978,243,761.64/84,543.11
  6. Step 6: Final answer
    x = 70,712.38

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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.