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Finding the Fourth Proportional to 70,723.38, 97,600.78 and 38,894.70

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Solution

The fourth proportional to 70,723.38, 97,600.78 and 38,894.70 is: 53,676.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,723.38 : 97,600.78 = 38,894.70 : x
  2. Step 2: Convert to fraction form
    70,723.38/97,600.78 = 38,894.70/x
  3. Step 3: Cross multiply
    70,723.38x = 97,600.78 × 38,894.70
  4. Step 4: Simplify right side
    70,723.38x = 3,796,153,057.87
  5. Step 5: Solve for x
    x = 3,796,153,057.87/70,723.38
  6. Step 6: Final answer
    x = 53,676.07

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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.