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Finding the Fourth Proportional to 64,695, 97,042.55 and 17,947.92

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Solution

The fourth proportional to 64,695, 97,042.55 and 17,947.92 is: 26,921.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,695 : 97,042.55 = 17,947.92 : x
  2. Step 2: Convert to fraction form
    64,695/97,042.55 = 17,947.92/x
  3. Step 3: Cross multiply
    64,695x = 97,042.55 × 17,947.92
  4. Step 4: Simplify right side
    64,695x = 1,741,711,834.26
  5. Step 5: Solve for x
    x = 1,741,711,834.26/64,695
  6. Step 6: Final answer
    x = 26,921.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.