Home / 51,203.43-76,815.54-21,621.15

Finding the Fourth Proportional to 51,203.43, 76,815.54 and 21,621.15

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Solution

The fourth proportional to 51,203.43, 76,815.54 and 21,621.15 is: 32,436.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,203.43 : 76,815.54 = 21,621.15 : x
  2. Step 2: Convert to fraction form
    51,203.43/76,815.54 = 21,621.15/x
  3. Step 3: Cross multiply
    51,203.43x = 76,815.54 × 21,621.15
  4. Step 4: Simplify right side
    51,203.43x = 1,660,840,312.67
  5. Step 5: Solve for x
    x = 1,660,840,312.67/51,203.43
  6. Step 6: Final answer
    x = 32,436.11

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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.