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Finding the Fourth Proportional to 70,491.27, 97,279.20 and 38,659.89

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Solution

The fourth proportional to 70,491.27, 97,279.20 and 38,659.89 is: 53,351.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,491.27 : 97,279.20 = 38,659.89 : x
  2. Step 2: Convert to fraction form
    70,491.27/97,279.20 = 38,659.89/x
  3. Step 3: Cross multiply
    70,491.27x = 97,279.20 × 38,659.89
  4. Step 4: Simplify right side
    70,491.27x = 3,760,803,171.29
  5. Step 5: Solve for x
    x = 3,760,803,171.29/70,491.27
  6. Step 6: Final answer
    x = 53,351.33

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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.