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Finding the Fourth Proportional to 70,703.46, 97,556.79 and 39,659.70

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Solution

The fourth proportional to 70,703.46, 97,556.79 and 39,659.70 is: 54,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,703.46 : 97,556.79 = 39,659.70 : x
  2. Step 2: Convert to fraction form
    70,703.46/97,556.79 = 39,659.70/x
  3. Step 3: Cross multiply
    70,703.46x = 97,556.79 × 39,659.70
  4. Step 4: Simplify right side
    70,703.46x = 3,869,073,204.30
  5. Step 5: Solve for x
    x = 3,869,073,204.30/70,703.46
  6. Step 6: Final answer
    x = 54,722.54

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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.