Home / 70,531.80-105,815.92-26,171.20

Finding the Fourth Proportional to 70,531.80, 105,815.92 and 26,171.20

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Solution

The fourth proportional to 70,531.80, 105,815.92 and 26,171.20 is: 39,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.80 : 105,815.92 = 26,171.20 : x
  2. Step 2: Convert to fraction form
    70,531.80/105,815.92 = 26,171.20/x
  3. Step 3: Cross multiply
    70,531.80x = 105,815.92 × 26,171.20
  4. Step 4: Simplify right side
    70,531.80x = 2,769,329,605.50
  5. Step 5: Solve for x
    x = 2,769,329,605.50/70,531.80
  6. Step 6: Final answer
    x = 39,263.56

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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.