Home / 52,203.12-78,331.68-25,907.28

Finding the Fourth Proportional to 52,203.12, 78,331.68 and 25,907.28

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Solution

The fourth proportional to 52,203.12, 78,331.68 and 25,907.28 is: 38,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,203.12 : 78,331.68 = 25,907.28 : x
  2. Step 2: Convert to fraction form
    52,203.12/78,331.68 = 25,907.28/x
  3. Step 3: Cross multiply
    52,203.12x = 78,331.68 × 25,907.28
  4. Step 4: Simplify right side
    52,203.12x = 2,029,360,766.63
  5. Step 5: Solve for x
    x = 2,029,360,766.63/52,203.12
  6. Step 6: Final answer
    x = 38,874.32

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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.