Home / 52,458.90-78,672.68-19,171.25

Finding the Fourth Proportional to 52,458.90, 78,672.68 and 19,171.25

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Solution

The fourth proportional to 52,458.90, 78,672.68 and 19,171.25 is: 28,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,458.90 : 78,672.68 = 19,171.25 : x
  2. Step 2: Convert to fraction form
    52,458.90/78,672.68 = 19,171.25/x
  3. Step 3: Cross multiply
    52,458.90x = 78,672.68 × 19,171.25
  4. Step 4: Simplify right side
    52,458.90x = 1,508,253,616.45
  5. Step 5: Solve for x
    x = 1,508,253,616.45/52,458.90
  6. Step 6: Final answer
    x = 28,751.15

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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.