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Finding the Fourth Proportional to 64,835, 89,470.06 and 36,539

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Solution

The fourth proportional to 64,835, 89,470.06 and 36,539 is: 50,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,835 : 89,470.06 = 36,539 : x
  2. Step 2: Convert to fraction form
    64,835/89,470.06 = 36,539/x
  3. Step 3: Cross multiply
    64,835x = 89,470.06 × 36,539
  4. Step 4: Simplify right side
    64,835x = 3,269,146,522.34
  5. Step 5: Solve for x
    x = 3,269,146,522.34/64,835
  6. Step 6: Final answer
    x = 50,422.56

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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.