Home / 74,726.09-103,121.16-40,733.83

Finding the Fourth Proportional to 74,726.09, 103,121.16 and 40,733.83

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Solution

The fourth proportional to 74,726.09, 103,121.16 and 40,733.83 is: 56,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,726.09 : 103,121.16 = 40,733.83 : x
  2. Step 2: Convert to fraction form
    74,726.09/103,121.16 = 40,733.83/x
  3. Step 3: Cross multiply
    74,726.09x = 103,121.16 × 40,733.83
  4. Step 4: Simplify right side
    74,726.09x = 4,200,519,543.04
  5. Step 5: Solve for x
    x = 4,200,519,543.04/74,726.09
  6. Step 6: Final answer
    x = 56,212.23

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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.