Home / 67,987.20-93,807-41,129.04

Finding the Fourth Proportional to 67,987.20, 93,807 and 41,129.04

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Solution

The fourth proportional to 67,987.20, 93,807 and 41,129.04 is: 56,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,987.20 : 93,807 = 41,129.04 : x
  2. Step 2: Convert to fraction form
    67,987.20/93,807 = 41,129.04/x
  3. Step 3: Cross multiply
    67,987.20x = 93,807 × 41,129.04
  4. Step 4: Simplify right side
    67,987.20x = 3,858,191,855.28
  5. Step 5: Solve for x
    x = 3,858,191,855.28/67,987.20
  6. Step 6: Final answer
    x = 56,748.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.