Home / 80,972.18-111,741.76-45,164.51

Finding the Fourth Proportional to 80,972.18, 111,741.76 and 45,164.51

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Solution

The fourth proportional to 80,972.18, 111,741.76 and 45,164.51 is: 62,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.18 : 111,741.76 = 45,164.51 : x
  2. Step 2: Convert to fraction form
    80,972.18/111,741.76 = 45,164.51/x
  3. Step 3: Cross multiply
    80,972.18x = 111,741.76 × 45,164.51
  4. Step 4: Simplify right side
    80,972.18x = 5,046,761,052.41
  5. Step 5: Solve for x
    x = 5,046,761,052.41/80,972.18
  6. Step 6: Final answer
    x = 62,327.10

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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.