Home / 83,821.80-115,675.22-48,011.78

Finding the Fourth Proportional to 83,821.80, 115,675.22 and 48,011.78

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Solution

The fourth proportional to 83,821.80, 115,675.22 and 48,011.78 is: 66,256.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,821.80 : 115,675.22 = 48,011.78 : x
  2. Step 2: Convert to fraction form
    83,821.80/115,675.22 = 48,011.78/x
  3. Step 3: Cross multiply
    83,821.80x = 115,675.22 × 48,011.78
  4. Step 4: Simplify right side
    83,821.80x = 5,553,773,623.31
  5. Step 5: Solve for x
    x = 5,553,773,623.31/83,821.80
  6. Step 6: Final answer
    x = 66,256.91

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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.