Home / 70,567.20-105,816.78-40,993.49

Finding the Fourth Proportional to 70,567.20, 105,816.78 and 40,993.49

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Solution

The fourth proportional to 70,567.20, 105,816.78 and 40,993.49 is: 61,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,567.20 : 105,816.78 = 40,993.49 : x
  2. Step 2: Convert to fraction form
    70,567.20/105,816.78 = 40,993.49/x
  3. Step 3: Cross multiply
    70,567.20x = 105,816.78 × 40,993.49
  4. Step 4: Simplify right side
    70,567.20x = 4,337,799,377.30
  5. Step 5: Solve for x
    x = 4,337,799,377.30/70,567.20
  6. Step 6: Final answer
    x = 61,470.48

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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.