Home / 42,169.21-58,113.45-30,211.79

Finding the Fourth Proportional to 42,169.21, 58,113.45 and 30,211.79

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Solution

The fourth proportional to 42,169.21, 58,113.45 and 30,211.79 is: 41,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,169.21 : 58,113.45 = 30,211.79 : x
  2. Step 2: Convert to fraction form
    42,169.21/58,113.45 = 30,211.79/x
  3. Step 3: Cross multiply
    42,169.21x = 58,113.45 × 30,211.79
  4. Step 4: Simplify right side
    42,169.21x = 1,755,711,057.01
  5. Step 5: Solve for x
    x = 1,755,711,057.01/42,169.21
  6. Step 6: Final answer
    x = 41,634.91

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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.