Home / 64,279.08-88,694.55-40,388.82

Finding the Fourth Proportional to 64,279.08, 88,694.55 and 40,388.82

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Solution

The fourth proportional to 64,279.08, 88,694.55 and 40,388.82 is: 55,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,279.08 : 88,694.55 = 40,388.82 : x
  2. Step 2: Convert to fraction form
    64,279.08/88,694.55 = 40,388.82/x
  3. Step 3: Cross multiply
    64,279.08x = 88,694.55 × 40,388.82
  4. Step 4: Simplify right side
    64,279.08x = 3,582,268,214.93
  5. Step 5: Solve for x
    x = 3,582,268,214.93/64,279.08
  6. Step 6: Final answer
    x = 55,729.92

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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.