Home / 74,150.39-102,326.96-40,158.09

Finding the Fourth Proportional to 74,150.39, 102,326.96 and 40,158.09

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Solution

The fourth proportional to 74,150.39, 102,326.96 and 40,158.09 is: 55,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.39 : 102,326.96 = 40,158.09 : x
  2. Step 2: Convert to fraction form
    74,150.39/102,326.96 = 40,158.09/x
  3. Step 3: Cross multiply
    74,150.39x = 102,326.96 × 40,158.09
  4. Step 4: Simplify right side
    74,150.39x = 4,109,254,556.68
  5. Step 5: Solve for x
    x = 4,109,254,556.68/74,150.39
  6. Step 6: Final answer
    x = 55,417.85

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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.