Home / 74,112.84-111,184.38-21,521.16

Finding the Fourth Proportional to 74,112.84, 111,184.38 and 21,521.16

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Solution

The fourth proportional to 74,112.84, 111,184.38 and 21,521.16 is: 32,286.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,112.84 : 111,184.38 = 21,521.16 : x
  2. Step 2: Convert to fraction form
    74,112.84/111,184.38 = 21,521.16/x
  3. Step 3: Cross multiply
    74,112.84x = 111,184.38 × 21,521.16
  4. Step 4: Simplify right side
    74,112.84x = 2,392,816,831.48
  5. Step 5: Solve for x
    x = 2,392,816,831.48/74,112.84
  6. Step 6: Final answer
    x = 32,286.13

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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.