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Finding the Fourth Proportional to 65,563.59, 90,476.78 and 36,881.09

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Solution

The fourth proportional to 65,563.59, 90,476.78 and 36,881.09 is: 50,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,563.59 : 90,476.78 = 36,881.09 : x
  2. Step 2: Convert to fraction form
    65,563.59/90,476.78 = 36,881.09/x
  3. Step 3: Cross multiply
    65,563.59x = 90,476.78 × 36,881.09
  4. Step 4: Simplify right side
    65,563.59x = 3,336,881,813.71
  5. Step 5: Solve for x
    x = 3,336,881,813.71/65,563.59
  6. Step 6: Final answer
    x = 50,895.35

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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.