Home / 70,748.28-97,632.84-38,919.18

Finding the Fourth Proportional to 70,748.28, 97,632.84 and 38,919.18

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Solution

The fourth proportional to 70,748.28, 97,632.84 and 38,919.18 is: 53,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,748.28 : 97,632.84 = 38,919.18 : x
  2. Step 2: Convert to fraction form
    70,748.28/97,632.84 = 38,919.18/x
  3. Step 3: Cross multiply
    70,748.28x = 97,632.84 × 38,919.18
  4. Step 4: Simplify right side
    70,748.28x = 3,799,790,073.87
  5. Step 5: Solve for x
    x = 3,799,790,073.87/70,748.28
  6. Step 6: Final answer
    x = 53,708.59

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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.