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Finding the Fourth Proportional to 70,722.38, 97,599.40 and 38,893.70

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Solution

The fourth proportional to 70,722.38, 97,599.40 and 38,893.70 is: 53,674.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,722.38 : 97,599.40 = 38,893.70 : x
  2. Step 2: Convert to fraction form
    70,722.38/97,599.40 = 38,893.70/x
  3. Step 3: Cross multiply
    70,722.38x = 97,599.40 × 38,893.70
  4. Step 4: Simplify right side
    70,722.38x = 3,796,001,783.78
  5. Step 5: Solve for x
    x = 3,796,001,783.78/70,722.38
  6. Step 6: Final answer
    x = 53,674.69

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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.