Home / 45,185.44-67,780.32-21,831.52

Finding the Fourth Proportional to 45,185.44, 67,780.32 and 21,831.52

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Solution

The fourth proportional to 45,185.44, 67,780.32 and 21,831.52 is: 32,748.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,185.44 : 67,780.32 = 21,831.52 : x
  2. Step 2: Convert to fraction form
    45,185.44/67,780.32 = 21,831.52/x
  3. Step 3: Cross multiply
    45,185.44x = 67,780.32 × 21,831.52
  4. Step 4: Simplify right side
    45,185.44x = 1,479,747,411.69
  5. Step 5: Solve for x
    x = 1,479,747,411.69/45,185.44
  6. Step 6: Final answer
    x = 32,748.32

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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.