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Finding the Fourth Proportional to 64,435.59, 88,915.19 and 36,135.81

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Solution

The fourth proportional to 64,435.59, 88,915.19 and 36,135.81 is: 49,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,435.59 : 88,915.19 = 36,135.81 : x
  2. Step 2: Convert to fraction form
    64,435.59/88,915.19 = 36,135.81/x
  3. Step 3: Cross multiply
    64,435.59x = 88,915.19 × 36,135.81
  4. Step 4: Simplify right side
    64,435.59x = 3,213,022,231.27
  5. Step 5: Solve for x
    x = 3,213,022,231.27/64,435.59
  6. Step 6: Final answer
    x = 49,864.09

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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.