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Finding the Fourth Proportional to 64,580.69, 89,129.67 and 36,291.85

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Solution

The fourth proportional to 64,580.69, 89,129.67 and 36,291.85 is: 50,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,580.69 : 89,129.67 = 36,291.85 : x
  2. Step 2: Convert to fraction form
    64,580.69/89,129.67 = 36,291.85/x
  3. Step 3: Cross multiply
    64,580.69x = 89,129.67 × 36,291.85
  4. Step 4: Simplify right side
    64,580.69x = 3,234,680,255.27
  5. Step 5: Solve for x
    x = 3,234,680,255.27/64,580.69
  6. Step 6: Final answer
    x = 50,087.42

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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.