Home / 64,678.20-89,255.79-36,383.90

Finding the Fourth Proportional to 64,678.20, 89,255.79 and 36,383.90

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Solution

The fourth proportional to 64,678.20, 89,255.79 and 36,383.90 is: 50,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,678.20 : 89,255.79 = 36,383.90 : x
  2. Step 2: Convert to fraction form
    64,678.20/89,255.79 = 36,383.90/x
  3. Step 3: Cross multiply
    64,678.20x = 89,255.79 × 36,383.90
  4. Step 4: Simplify right side
    64,678.20x = 3,247,473,291.50
  5. Step 5: Solve for x
    x = 3,247,473,291.50/64,678.20
  6. Step 6: Final answer
    x = 50,209.70

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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.