Home / 81,162.73-112,005.12-45,354.25

Finding the Fourth Proportional to 81,162.73, 112,005.12 and 45,354.25

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Solution

The fourth proportional to 81,162.73, 112,005.12 and 45,354.25 is: 62,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,162.73 : 112,005.12 = 45,354.25 : x
  2. Step 2: Convert to fraction form
    81,162.73/112,005.12 = 45,354.25/x
  3. Step 3: Cross multiply
    81,162.73x = 112,005.12 × 45,354.25
  4. Step 4: Simplify right side
    81,162.73x = 5,079,908,213.76
  5. Step 5: Solve for x
    x = 5,079,908,213.76/81,162.73
  6. Step 6: Final answer
    x = 62,589.17

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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.