Home / 74,115.67-102,279.49-40,124.14

Finding the Fourth Proportional to 74,115.67, 102,279.49 and 40,124.14

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Solution

The fourth proportional to 74,115.67, 102,279.49 and 40,124.14 is: 55,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,115.67 : 102,279.49 = 40,124.14 : x
  2. Step 2: Convert to fraction form
    74,115.67/102,279.49 = 40,124.14/x
  3. Step 3: Cross multiply
    74,115.67x = 102,279.49 × 40,124.14
  4. Step 4: Simplify right side
    74,115.67x = 4,103,876,498.19
  5. Step 5: Solve for x
    x = 4,103,876,498.19/74,115.67
  6. Step 6: Final answer
    x = 55,371.24

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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.