Home / 40,192.04-55,401.10-31,680.36

Finding the Fourth Proportional to 40,192.04, 55,401.10 and 31,680.36

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Solution

The fourth proportional to 40,192.04, 55,401.10 and 31,680.36 is: 43,668.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,192.04 : 55,401.10 = 31,680.36 : x
  2. Step 2: Convert to fraction form
    40,192.04/55,401.10 = 31,680.36/x
  3. Step 3: Cross multiply
    40,192.04x = 55,401.10 × 31,680.36
  4. Step 4: Simplify right side
    40,192.04x = 1,755,126,713.20
  5. Step 5: Solve for x
    x = 1,755,126,713.20/40,192.04
  6. Step 6: Final answer
    x = 43,668.51

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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.