Home / 79,549.73-109,778.85-45,558.75

Finding the Fourth Proportional to 79,549.73, 109,778.85 and 45,558.75

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Solution

The fourth proportional to 79,549.73, 109,778.85 and 45,558.75 is: 62,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,549.73 : 109,778.85 = 45,558.75 : x
  2. Step 2: Convert to fraction form
    79,549.73/109,778.85 = 45,558.75/x
  3. Step 3: Cross multiply
    79,549.73x = 109,778.85 × 45,558.75
  4. Step 4: Simplify right side
    79,549.73x = 5,001,387,182.44
  5. Step 5: Solve for x
    x = 5,001,387,182.44/79,549.73
  6. Step 6: Final answer
    x = 62,871.21

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1.5x scale

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.