Home / 81,171.72-112,008.30-45,363.24

Finding the Fourth Proportional to 81,171.72, 112,008.30 and 45,363.24

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Solution

The fourth proportional to 81,171.72, 112,008.30 and 45,363.24 is: 62,596.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,171.72 : 112,008.30 = 45,363.24 : x
  2. Step 2: Convert to fraction form
    81,171.72/112,008.30 = 45,363.24/x
  3. Step 3: Cross multiply
    81,171.72x = 112,008.30 × 45,363.24
  4. Step 4: Simplify right side
    81,171.72x = 5,081,059,394.89
  5. Step 5: Solve for x
    x = 5,081,059,394.89/81,171.72
  6. Step 6: Final answer
    x = 62,596.42

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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.