Home / 80,820.74-111,536.08-45,010.75

Finding the Fourth Proportional to 80,820.74, 111,536.08 and 45,010.75

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Solution

The fourth proportional to 80,820.74, 111,536.08 and 45,010.75 is: 62,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.74 : 111,536.08 = 45,010.75 : x
  2. Step 2: Convert to fraction form
    80,820.74/111,536.08 = 45,010.75/x
  3. Step 3: Cross multiply
    80,820.74x = 111,536.08 × 45,010.75
  4. Step 4: Simplify right side
    80,820.74x = 5,020,322,612.86
  5. Step 5: Solve for x
    x = 5,020,322,612.86/80,820.74
  6. Step 6: Final answer
    x = 62,116.76

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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.