Home / 74,649.50-111,985.77-27,909.02

Finding the Fourth Proportional to 74,649.50, 111,985.77 and 27,909.02

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Solution

The fourth proportional to 74,649.50, 111,985.77 and 27,909.02 is: 41,867.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,649.50 : 111,985.77 = 27,909.02 : x
  2. Step 2: Convert to fraction form
    74,649.50/111,985.77 = 27,909.02/x
  3. Step 3: Cross multiply
    74,649.50x = 111,985.77 × 27,909.02
  4. Step 4: Simplify right side
    74,649.50x = 3,125,413,094.65
  5. Step 5: Solve for x
    x = 3,125,413,094.65/74,649.50
  6. Step 6: Final answer
    x = 41,867.84

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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.