Home / 52,339.26-78,534.86-20,748.65

Finding the Fourth Proportional to 52,339.26, 78,534.86 and 20,748.65

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Solution

The fourth proportional to 52,339.26, 78,534.86 and 20,748.65 is: 31,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,339.26 : 78,534.86 = 20,748.65 : x
  2. Step 2: Convert to fraction form
    52,339.26/78,534.86 = 20,748.65/x
  3. Step 3: Cross multiply
    52,339.26x = 78,534.86 × 20,748.65
  4. Step 4: Simplify right side
    52,339.26x = 1,629,491,826.52
  5. Step 5: Solve for x
    x = 1,629,491,826.52/52,339.26
  6. Step 6: Final answer
    x = 31,133.26

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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.