Home / 66,113.20-99,184.38-21,738.16

Finding the Fourth Proportional to 66,113.20, 99,184.38 and 21,738.16

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Solution

The fourth proportional to 66,113.20, 99,184.38 and 21,738.16 is: 32,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.20 : 99,184.38 = 21,738.16 : x
  2. Step 2: Convert to fraction form
    66,113.20/99,184.38 = 21,738.16/x
  3. Step 3: Cross multiply
    66,113.20x = 99,184.38 × 21,738.16
  4. Step 4: Simplify right side
    66,113.20x = 2,156,085,921.94
  5. Step 5: Solve for x
    x = 2,156,085,921.94/66,113.20
  6. Step 6: Final answer
    x = 32,612.03

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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.