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Finding the Fourth Proportional to 70,127.80, 105,191.71 and 17,537.29

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Solution

The fourth proportional to 70,127.80, 105,191.71 and 17,537.29 is: 26,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,127.80 : 105,191.71 = 17,537.29 : x
  2. Step 2: Convert to fraction form
    70,127.80/105,191.71 = 17,537.29/x
  3. Step 3: Cross multiply
    70,127.80x = 105,191.71 × 17,537.29
  4. Step 4: Simplify right side
    70,127.80x = 1,844,777,217.04
  5. Step 5: Solve for x
    x = 1,844,777,217.04/70,127.80
  6. Step 6: Final answer
    x = 26,305.93

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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.