Home / 49,407.13-74,057.55-21,340.39

Finding the Fourth Proportional to 49,407.13, 74,057.55 and 21,340.39

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Solution

The fourth proportional to 49,407.13, 74,057.55 and 21,340.39 is: 31,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,407.13 : 74,057.55 = 21,340.39 : x
  2. Step 2: Convert to fraction form
    49,407.13/74,057.55 = 21,340.39/x
  3. Step 3: Cross multiply
    49,407.13x = 74,057.55 × 21,340.39
  4. Step 4: Simplify right side
    49,407.13x = 1,580,416,999.44
  5. Step 5: Solve for x
    x = 1,580,416,999.44/49,407.13
  6. Step 6: Final answer
    x = 31,987.63

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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.