Home / 64,289.10-88,708.38-40,398.84

Finding the Fourth Proportional to 64,289.10, 88,708.38 and 40,398.84

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Solution

The fourth proportional to 64,289.10, 88,708.38 and 40,398.84 is: 55,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.10 : 88,708.38 = 40,398.84 : x
  2. Step 2: Convert to fraction form
    64,289.10/88,708.38 = 40,398.84/x
  3. Step 3: Cross multiply
    64,289.10x = 88,708.38 × 40,398.84
  4. Step 4: Simplify right side
    64,289.10x = 3,583,715,650.28
  5. Step 5: Solve for x
    x = 3,583,715,650.28/64,289.10
  6. Step 6: Final answer
    x = 55,743.75

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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.