Home / 81,205.11-112,065.59-45,394.97

Finding the Fourth Proportional to 81,205.11, 112,065.59 and 45,394.97

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Solution

The fourth proportional to 81,205.11, 112,065.59 and 45,394.97 is: 62,646.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,205.11 : 112,065.59 = 45,394.97 : x
  2. Step 2: Convert to fraction form
    81,205.11/112,065.59 = 45,394.97/x
  3. Step 3: Cross multiply
    81,205.11x = 112,065.59 × 45,394.97
  4. Step 4: Simplify right side
    81,205.11x = 5,087,213,649.24
  5. Step 5: Solve for x
    x = 5,087,213,649.24/81,205.11
  6. Step 6: Final answer
    x = 62,646.47

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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.