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Finding the Fourth Proportional to 70,877.43, 97,814.79 and 39,049.29

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Solution

The fourth proportional to 70,877.43, 97,814.79 and 39,049.29 is: 53,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,877.43 : 97,814.79 = 39,049.29 : x
  2. Step 2: Convert to fraction form
    70,877.43/97,814.79 = 39,049.29/x
  3. Step 3: Cross multiply
    70,877.43x = 97,814.79 × 39,049.29
  4. Step 4: Simplify right side
    70,877.43x = 3,819,598,101.00
  5. Step 5: Solve for x
    x = 3,819,598,101.00/70,877.43
  6. Step 6: Final answer
    x = 53,890.19

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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.