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Finding the Fourth Proportional to 70,407, 97,161.72 and 38,576.04

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Solution

The fourth proportional to 70,407, 97,161.72 and 38,576.04 is: 53,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,407 : 97,161.72 = 38,576.04 : x
  2. Step 2: Convert to fraction form
    70,407/97,161.72 = 38,576.04/x
  3. Step 3: Cross multiply
    70,407x = 97,161.72 × 38,576.04
  4. Step 4: Simplify right side
    70,407x = 3,748,114,397.19
  5. Step 5: Solve for x
    x = 3,748,114,397.19/70,407
  6. Step 6: Final answer
    x = 53,234.97

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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.