Home / 80,181.24-110,642.60-47,909.45

Finding the Fourth Proportional to 80,181.24, 110,642.60 and 47,909.45

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Solution

The fourth proportional to 80,181.24, 110,642.60 and 47,909.45 is: 66,110.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,181.24 : 110,642.60 = 47,909.45 : x
  2. Step 2: Convert to fraction form
    80,181.24/110,642.60 = 47,909.45/x
  3. Step 3: Cross multiply
    80,181.24x = 110,642.60 × 47,909.45
  4. Step 4: Simplify right side
    80,181.24x = 5,300,825,319.81
  5. Step 5: Solve for x
    x = 5,300,825,319.81/80,181.24
  6. Step 6: Final answer
    x = 66,110.54

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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.