Home / 115,047.91-172,613.40-40,179.11

Finding the Fourth Proportional to 115,047.91, 172,613.40 and 40,179.11

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Solution

The fourth proportional to 115,047.91, 172,613.40 and 40,179.11 is: 60,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,047.91 : 172,613.40 = 40,179.11 : x
  2. Step 2: Convert to fraction form
    115,047.91/172,613.40 = 40,179.11/x
  3. Step 3: Cross multiply
    115,047.91x = 172,613.40 × 40,179.11
  4. Step 4: Simplify right side
    115,047.91x = 6,935,451,772.34
  5. Step 5: Solve for x
    x = 6,935,451,772.34/115,047.91
  6. Step 6: Final answer
    x = 60,283.16

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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.