Home / 76,854.10-115,320.36-51,841.73

Finding the Fourth Proportional to 76,854.10, 115,320.36 and 51,841.73

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Solution

The fourth proportional to 76,854.10, 115,320.36 and 51,841.73 is: 77,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,854.10 : 115,320.36 = 51,841.73 : x
  2. Step 2: Convert to fraction form
    76,854.10/115,320.36 = 51,841.73/x
  3. Step 3: Cross multiply
    76,854.10x = 115,320.36 × 51,841.73
  4. Step 4: Simplify right side
    76,854.10x = 5,978,407,319.89
  5. Step 5: Solve for x
    x = 5,978,407,319.89/76,854.10
  6. Step 6: Final answer
    x = 77,789.04

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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.