Home / 81,555.04-112,767.96-71,057.44

Finding the Fourth Proportional to 81,555.04, 112,767.96 and 71,057.44

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Solution

The fourth proportional to 81,555.04, 112,767.96 and 71,057.44 is: 98,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,555.04 : 112,767.96 = 71,057.44 : x
  2. Step 2: Convert to fraction form
    81,555.04/112,767.96 = 71,057.44/x
  3. Step 3: Cross multiply
    81,555.04x = 112,767.96 × 71,057.44
  4. Step 4: Simplify right side
    81,555.04x = 8,013,002,551.62
  5. Step 5: Solve for x
    x = 8,013,002,551.62/81,555.04
  6. Step 6: Final answer
    x = 98,252.70

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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.