Home / 82,481.04-123,721.50-47,398.32

Finding the Fourth Proportional to 82,481.04, 123,721.50 and 47,398.32

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Solution

The fourth proportional to 82,481.04, 123,721.50 and 47,398.32 is: 71,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,481.04 : 123,721.50 = 47,398.32 : x
  2. Step 2: Convert to fraction form
    82,481.04/123,721.50 = 47,398.32/x
  3. Step 3: Cross multiply
    82,481.04x = 123,721.50 × 47,398.32
  4. Step 4: Simplify right side
    82,481.04x = 5,864,191,247.88
  5. Step 5: Solve for x
    x = 5,864,191,247.88/82,481.04
  6. Step 6: Final answer
    x = 71,097.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.