Home / 84,562.16-126,733.05-47,120.72

Finding the Fourth Proportional to 84,562.16, 126,733.05 and 47,120.72

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Solution

The fourth proportional to 84,562.16, 126,733.05 and 47,120.72 is: 70,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,562.16 : 126,733.05 = 47,120.72 : x
  2. Step 2: Convert to fraction form
    84,562.16/126,733.05 = 47,120.72/x
  3. Step 3: Cross multiply
    84,562.16x = 126,733.05 × 47,120.72
  4. Step 4: Simplify right side
    84,562.16x = 5,971,751,930.13
  5. Step 5: Solve for x
    x = 5,971,751,930.13/84,562.16
  6. Step 6: Final answer
    x = 70,619.68

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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.