Home / 70,278.13-105,468.23-27,589.71

Finding the Fourth Proportional to 70,278.13, 105,468.23 and 27,589.71

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Solution

The fourth proportional to 70,278.13, 105,468.23 and 27,589.71 is: 41,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,278.13 : 105,468.23 = 27,589.71 : x
  2. Step 2: Convert to fraction form
    70,278.13/105,468.23 = 27,589.71/x
  3. Step 3: Cross multiply
    70,278.13x = 105,468.23 × 27,589.71
  4. Step 4: Simplify right side
    70,278.13x = 2,909,838,344.39
  5. Step 5: Solve for x
    x = 2,909,838,344.39/70,278.13
  6. Step 6: Final answer
    x = 41,404.61

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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.