Home / 81,778.46-112,848.12-45,961.47

Finding the Fourth Proportional to 81,778.46, 112,848.12 and 45,961.47

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Solution

The fourth proportional to 81,778.46, 112,848.12 and 45,961.47 is: 63,423.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,778.46 : 112,848.12 = 45,961.47 : x
  2. Step 2: Convert to fraction form
    81,778.46/112,848.12 = 45,961.47/x
  3. Step 3: Cross multiply
    81,778.46x = 112,848.12 × 45,961.47
  4. Step 4: Simplify right side
    81,778.46x = 5,186,665,481.94
  5. Step 5: Solve for x
    x = 5,186,665,481.94/81,778.46
  6. Step 6: Final answer
    x = 63,423.37

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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.