Home / 81,285.46-112,179.27-45,481.66

Finding the Fourth Proportional to 81,285.46, 112,179.27 and 45,481.66

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Solution

The fourth proportional to 81,285.46, 112,179.27 and 45,481.66 is: 62,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,285.46 : 112,179.27 = 45,481.66 : x
  2. Step 2: Convert to fraction form
    81,285.46/112,179.27 = 45,481.66/x
  3. Step 3: Cross multiply
    81,285.46x = 112,179.27 × 45,481.66
  4. Step 4: Simplify right side
    81,285.46x = 5,102,099,417.19
  5. Step 5: Solve for x
    x = 5,102,099,417.19/81,285.46
  6. Step 6: Final answer
    x = 62,767.68

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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.