Home / 74,081.48-102,231.72-40,089.24

Finding the Fourth Proportional to 74,081.48, 102,231.72 and 40,089.24

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Solution

The fourth proportional to 74,081.48, 102,231.72 and 40,089.24 is: 55,322.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,081.48 : 102,231.72 = 40,089.24 : x
  2. Step 2: Convert to fraction form
    74,081.48/102,231.72 = 40,089.24/x
  3. Step 3: Cross multiply
    74,081.48x = 102,231.72 × 40,089.24
  4. Step 4: Simplify right side
    74,081.48x = 4,098,391,958.69
  5. Step 5: Solve for x
    x = 4,098,391,958.69/74,081.48
  6. Step 6: Final answer
    x = 55,322.76

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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.