Home / 74,230.32-111,364.20-21,644.40

Finding the Fourth Proportional to 74,230.32, 111,364.20 and 21,644.40

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Solution

The fourth proportional to 74,230.32, 111,364.20 and 21,644.40 is: 32,472.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,230.32 : 111,364.20 = 21,644.40 : x
  2. Step 2: Convert to fraction form
    74,230.32/111,364.20 = 21,644.40/x
  3. Step 3: Cross multiply
    74,230.32x = 111,364.20 × 21,644.40
  4. Step 4: Simplify right side
    74,230.32x = 2,410,411,290.48
  5. Step 5: Solve for x
    x = 2,410,411,290.48/74,230.32
  6. Step 6: Final answer
    x = 32,472.06

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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.