Home / 70,139.20-96,790.60-38,308.22

Finding the Fourth Proportional to 70,139.20, 96,790.60 and 38,308.22

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Solution

The fourth proportional to 70,139.20, 96,790.60 and 38,308.22 is: 52,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,139.20 : 96,790.60 = 38,308.22 : x
  2. Step 2: Convert to fraction form
    70,139.20/96,790.60 = 38,308.22/x
  3. Step 3: Cross multiply
    70,139.20x = 96,790.60 × 38,308.22
  4. Step 4: Simplify right side
    70,139.20x = 3,707,875,598.73
  5. Step 5: Solve for x
    x = 3,707,875,598.73/70,139.20
  6. Step 6: Final answer
    x = 52,864.53

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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.