Home / 70,121.52-96,767.68-38,290.45

Finding the Fourth Proportional to 70,121.52, 96,767.68 and 38,290.45

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Solution

The fourth proportional to 70,121.52, 96,767.68 and 38,290.45 is: 52,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121.52 : 96,767.68 = 38,290.45 : x
  2. Step 2: Convert to fraction form
    70,121.52/96,767.68 = 38,290.45/x
  3. Step 3: Cross multiply
    70,121.52x = 96,767.68 × 38,290.45
  4. Step 4: Simplify right side
    70,121.52x = 3,705,278,012.66
  5. Step 5: Solve for x
    x = 3,705,278,012.66/70,121.52
  6. Step 6: Final answer
    x = 52,840.81

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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.