Home / 53,119.80-79,689.30-26,758.20

Finding the Fourth Proportional to 53,119.80, 79,689.30 and 26,758.20

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Solution

The fourth proportional to 53,119.80, 79,689.30 and 26,758.20 is: 40,142.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,119.80 : 79,689.30 = 26,758.20 : x
  2. Step 2: Convert to fraction form
    53,119.80/79,689.30 = 26,758.20/x
  3. Step 3: Cross multiply
    53,119.80x = 79,689.30 × 26,758.20
  4. Step 4: Simplify right side
    53,119.80x = 2,132,342,227.26
  5. Step 5: Solve for x
    x = 2,132,342,227.26/53,119.80
  6. Step 6: Final answer
    x = 40,142.14

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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.