Home / 79,949.72-119,987.25-55,776.82

Finding the Fourth Proportional to 79,949.72, 119,987.25 and 55,776.82

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Solution

The fourth proportional to 79,949.72, 119,987.25 and 55,776.82 is: 83,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,949.72 : 119,987.25 = 55,776.82 : x
  2. Step 2: Convert to fraction form
    79,949.72/119,987.25 = 55,776.82/x
  3. Step 3: Cross multiply
    79,949.72x = 119,987.25 × 55,776.82
  4. Step 4: Simplify right side
    79,949.72x = 6,692,506,966.66
  5. Step 5: Solve for x
    x = 6,692,506,966.66/79,949.72
  6. Step 6: Final answer
    x = 83,708.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.