Home / 74,963.20-103,448.97-40,971.69

Finding the Fourth Proportional to 74,963.20, 103,448.97 and 40,971.69

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Solution

The fourth proportional to 74,963.20, 103,448.97 and 40,971.69 is: 56,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.20 : 103,448.97 = 40,971.69 : x
  2. Step 2: Convert to fraction form
    74,963.20/103,448.97 = 40,971.69/x
  3. Step 3: Cross multiply
    74,963.20x = 103,448.97 × 40,971.69
  4. Step 4: Simplify right side
    74,963.20x = 4,238,479,129.66
  5. Step 5: Solve for x
    x = 4,238,479,129.66/74,963.20
  6. Step 6: Final answer
    x = 56,540.80

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1.5x scale

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.