Home / 53,191.43-79,719.30-28,243.43

Finding the Fourth Proportional to 53,191.43, 79,719.30 and 28,243.43

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Solution

The fourth proportional to 53,191.43, 79,719.30 and 28,243.43 is: 42,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,191.43 : 79,719.30 = 28,243.43 : x
  2. Step 2: Convert to fraction form
    53,191.43/79,719.30 = 28,243.43/x
  3. Step 3: Cross multiply
    53,191.43x = 79,719.30 × 28,243.43
  4. Step 4: Simplify right side
    53,191.43x = 2,251,546,070.60
  5. Step 5: Solve for x
    x = 2,251,546,070.60/53,191.43
  6. Step 6: Final answer
    x = 42,329.12

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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.