Home / 70,750.26-97,634.66-38,919.20

Finding the Fourth Proportional to 70,750.26, 97,634.66 and 38,919.20

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Solution

The fourth proportional to 70,750.26, 97,634.66 and 38,919.20 is: 53,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,750.26 : 97,634.66 = 38,919.20 : x
  2. Step 2: Convert to fraction form
    70,750.26/97,634.66 = 38,919.20/x
  3. Step 3: Cross multiply
    70,750.26x = 97,634.66 × 38,919.20
  4. Step 4: Simplify right side
    70,750.26x = 3,799,862,176.70
  5. Step 5: Solve for x
    x = 3,799,862,176.70/70,750.26
  6. Step 6: Final answer
    x = 53,708.10

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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.