Home / 40,190.58-55,451.69-31,666.28

Finding the Fourth Proportional to 40,190.58, 55,451.69 and 31,666.28

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Solution

The fourth proportional to 40,190.58, 55,451.69 and 31,666.28 is: 43,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,190.58 : 55,451.69 = 31,666.28 : x
  2. Step 2: Convert to fraction form
    40,190.58/55,451.69 = 31,666.28/x
  3. Step 3: Cross multiply
    40,190.58x = 55,451.69 × 31,666.28
  4. Step 4: Simplify right side
    40,190.58x = 1,755,948,425.17
  5. Step 5: Solve for x
    x = 1,755,948,425.17/40,190.58
  6. Step 6: Final answer
    x = 43,690.55

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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.