Home / 70,422.24-105,633.60-17,831.70

Finding the Fourth Proportional to 70,422.24, 105,633.60 and 17,831.70

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Solution

The fourth proportional to 70,422.24, 105,633.60 and 17,831.70 is: 26,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,422.24 : 105,633.60 = 17,831.70 : x
  2. Step 2: Convert to fraction form
    70,422.24/105,633.60 = 17,831.70/x
  3. Step 3: Cross multiply
    70,422.24x = 105,633.60 × 17,831.70
  4. Step 4: Simplify right side
    70,422.24x = 1,883,626,665.12
  5. Step 5: Solve for x
    x = 1,883,626,665.12/70,422.24
  6. Step 6: Final answer
    x = 26,747.61

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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.