Home / 81,537.80-112,418.00-52,806.70

Finding the Fourth Proportional to 81,537.80, 112,418.00 and 52,806.70

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Solution

The fourth proportional to 81,537.80, 112,418.00 and 52,806.70 is: 72,805.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,537.80 : 112,418.00 = 52,806.70 : x
  2. Step 2: Convert to fraction form
    81,537.80/112,418.00 = 52,806.70/x
  3. Step 3: Cross multiply
    81,537.80x = 112,418.00 × 52,806.70
  4. Step 4: Simplify right side
    81,537.80x = 5,936,423,055.52
  5. Step 5: Solve for x
    x = 5,936,423,055.52/81,537.80
  6. Step 6: Final answer
    x = 72,805.78

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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.