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Finding the Fourth Proportional to 80,458.76, 111,025.73 and 47,747.54

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Solution

The fourth proportional to 80,458.76, 111,025.73 and 47,747.54 is: 65,887.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,458.76 : 111,025.73 = 47,747.54 : x
  2. Step 2: Convert to fraction form
    80,458.76/111,025.73 = 47,747.54/x
  3. Step 3: Cross multiply
    80,458.76x = 111,025.73 × 47,747.54
  4. Step 4: Simplify right side
    80,458.76x = 5,301,205,484.20
  5. Step 5: Solve for x
    x = 5,301,205,484.20/80,458.76
  6. Step 6: Final answer
    x = 65,887.24

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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.