Home / 53,231.25-79,680.79-39,207.11

Finding the Fourth Proportional to 53,231.25, 79,680.79 and 39,207.11

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Solution

The fourth proportional to 53,231.25, 79,680.79 and 39,207.11 is: 58,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.25 : 79,680.79 = 39,207.11 : x
  2. Step 2: Convert to fraction form
    53,231.25/79,680.79 = 39,207.11/x
  3. Step 3: Cross multiply
    53,231.25x = 79,680.79 × 39,207.11
  4. Step 4: Simplify right side
    53,231.25x = 3,124,053,498.42
  5. Step 5: Solve for x
    x = 3,124,053,498.42/53,231.25
  6. Step 6: Final answer
    x = 58,688.34

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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.