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Finding the Fourth Proportional to 65,988.84, 99,435.99 and 54,558.12

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Solution

The fourth proportional to 65,988.84, 99,435.99 and 54,558.12 is: 82,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988.84 : 99,435.99 = 54,558.12 : x
  2. Step 2: Convert to fraction form
    65,988.84/99,435.99 = 54,558.12/x
  3. Step 3: Cross multiply
    65,988.84x = 99,435.99 × 54,558.12
  4. Step 4: Simplify right side
    65,988.84x = 5,425,040,674.74
  5. Step 5: Solve for x
    x = 5,425,040,674.74/65,988.84
  6. Step 6: Final answer
    x = 82,211.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.