Home / 81,645.14-112,666.67-45,834.43

Finding the Fourth Proportional to 81,645.14, 112,666.67 and 45,834.43

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Solution

The fourth proportional to 81,645.14, 112,666.67 and 45,834.43 is: 63,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645.14 : 112,666.67 = 45,834.43 : x
  2. Step 2: Convert to fraction form
    81,645.14/112,666.67 = 45,834.43/x
  3. Step 3: Cross multiply
    81,645.14x = 112,666.67 × 45,834.43
  4. Step 4: Simplify right side
    81,645.14x = 5,164,012,599.45
  5. Step 5: Solve for x
    x = 5,164,012,599.45/81,645.14
  6. Step 6: Final answer
    x = 63,249.48

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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.