Home / 40,119.74-55,306.22-30,542.91

Finding the Fourth Proportional to 40,119.74, 55,306.22 and 30,542.91

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Solution

The fourth proportional to 40,119.74, 55,306.22 and 30,542.91 is: 42,104.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,119.74 : 55,306.22 = 30,542.91 : x
  2. Step 2: Convert to fraction form
    40,119.74/55,306.22 = 30,542.91/x
  3. Step 3: Cross multiply
    40,119.74x = 55,306.22 × 30,542.91
  4. Step 4: Simplify right side
    40,119.74x = 1,689,212,747.19
  5. Step 5: Solve for x
    x = 1,689,212,747.19/40,119.74
  6. Step 6: Final answer
    x = 42,104.28

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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.