Home / 74,869.42-103,295-49,388.44

Finding the Fourth Proportional to 74,869.42, 103,295 and 49,388.44

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Solution

The fourth proportional to 74,869.42, 103,295 and 49,388.44 is: 68,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,869.42 : 103,295 = 49,388.44 : x
  2. Step 2: Convert to fraction form
    74,869.42/103,295 = 49,388.44/x
  3. Step 3: Cross multiply
    74,869.42x = 103,295 × 49,388.44
  4. Step 4: Simplify right side
    74,869.42x = 5,101,578,909.80
  5. Step 5: Solve for x
    x = 5,101,578,909.80/74,869.42
  6. Step 6: Final answer
    x = 68,139.69

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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.