Home / 66,099.24-91,218.47-39,241.85

Finding the Fourth Proportional to 66,099.24, 91,218.47 and 39,241.85

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Solution

The fourth proportional to 66,099.24, 91,218.47 and 39,241.85 is: 54,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,099.24 : 91,218.47 = 39,241.85 : x
  2. Step 2: Convert to fraction form
    66,099.24/91,218.47 = 39,241.85/x
  3. Step 3: Cross multiply
    66,099.24x = 91,218.47 × 39,241.85
  4. Step 4: Simplify right side
    66,099.24x = 3,579,580,864.67
  5. Step 5: Solve for x
    x = 3,579,580,864.67/66,099.24
  6. Step 6: Final answer
    x = 54,154.64

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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.