Home / 40,456.80-55,825.20-29,851.20

Finding the Fourth Proportional to 40,456.80, 55,825.20 and 29,851.20

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Solution

The fourth proportional to 40,456.80, 55,825.20 and 29,851.20 is: 41,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,456.80 : 55,825.20 = 29,851.20 : x
  2. Step 2: Convert to fraction form
    40,456.80/55,825.20 = 29,851.20/x
  3. Step 3: Cross multiply
    40,456.80x = 55,825.20 × 29,851.20
  4. Step 4: Simplify right side
    40,456.80x = 1,666,449,210.24
  5. Step 5: Solve for x
    x = 1,666,449,210.24/40,456.80
  6. Step 6: Final answer
    x = 41,190.83

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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.