Home / 80,572.44-111,056.22-70,857.12

Finding the Fourth Proportional to 80,572.44, 111,056.22 and 70,857.12

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Solution

The fourth proportional to 80,572.44, 111,056.22 and 70,857.12 is: 97,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,572.44 : 111,056.22 = 70,857.12 : x
  2. Step 2: Convert to fraction form
    80,572.44/111,056.22 = 70,857.12/x
  3. Step 3: Cross multiply
    80,572.44x = 111,056.22 × 70,857.12
  4. Step 4: Simplify right side
    80,572.44x = 7,869,123,907.29
  5. Step 5: Solve for x
    x = 7,869,123,907.29/80,572.44
  6. Step 6: Final answer
    x = 97,665.21

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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.