Home / 70,138.20-96,789.22-38,307.23

Finding the Fourth Proportional to 70,138.20, 96,789.22 and 38,307.23

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Solution

The fourth proportional to 70,138.20, 96,789.22 and 38,307.23 is: 52,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,138.20 : 96,789.22 = 38,307.23 : x
  2. Step 2: Convert to fraction form
    70,138.20/96,789.22 = 38,307.23/x
  3. Step 3: Cross multiply
    70,138.20x = 96,789.22 × 38,307.23
  4. Step 4: Simplify right side
    70,138.20x = 3,707,726,912.06
  5. Step 5: Solve for x
    x = 3,707,726,912.06/70,138.20
  6. Step 6: Final answer
    x = 52,863.16

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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.