Home / 70,748.78-97,630.92-38,917.40

Finding the Fourth Proportional to 70,748.78, 97,630.92 and 38,917.40

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Solution

The fourth proportional to 70,748.78, 97,630.92 and 38,917.40 is: 53,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,748.78 : 97,630.92 = 38,917.40 : x
  2. Step 2: Convert to fraction form
    70,748.78/97,630.92 = 38,917.40/x
  3. Step 3: Cross multiply
    70,748.78x = 97,630.92 × 38,917.40
  4. Step 4: Simplify right side
    70,748.78x = 3,799,541,077.85
  5. Step 5: Solve for x
    x = 3,799,541,077.85/70,748.78
  6. Step 6: Final answer
    x = 53,704.69

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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.