Home / 79,867.85-110,173.90-55,630.42

Finding the Fourth Proportional to 79,867.85, 110,173.90 and 55,630.42

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Solution

The fourth proportional to 79,867.85, 110,173.90 and 55,630.42 is: 76,739.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,867.85 : 110,173.90 = 55,630.42 : x
  2. Step 2: Convert to fraction form
    79,867.85/110,173.90 = 55,630.42/x
  3. Step 3: Cross multiply
    79,867.85x = 110,173.90 × 55,630.42
  4. Step 4: Simplify right side
    79,867.85x = 6,129,020,330.04
  5. Step 5: Solve for x
    x = 6,129,020,330.04/79,867.85
  6. Step 6: Final answer
    x = 76,739.52

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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.