Home / 80,687.32-111,241.56-70,523.44

Finding the Fourth Proportional to 80,687.32, 111,241.56 and 70,523.44

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Solution

The fourth proportional to 80,687.32, 111,241.56 and 70,523.44 is: 97,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687.32 : 111,241.56 = 70,523.44 : x
  2. Step 2: Convert to fraction form
    80,687.32/111,241.56 = 70,523.44/x
  3. Step 3: Cross multiply
    80,687.32x = 111,241.56 × 70,523.44
  4. Step 4: Simplify right side
    80,687.32x = 7,845,137,482.17
  5. Step 5: Solve for x
    x = 7,845,137,482.17/80,687.32
  6. Step 6: Final answer
    x = 97,228.88

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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.