Home / 66,118.21-91,241.13-35,902.98

Finding the Fourth Proportional to 66,118.21, 91,241.13 and 35,902.98

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Solution

The fourth proportional to 66,118.21, 91,241.13 and 35,902.98 is: 49,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,118.21 : 91,241.13 = 35,902.98 : x
  2. Step 2: Convert to fraction form
    66,118.21/91,241.13 = 35,902.98/x
  3. Step 3: Cross multiply
    66,118.21x = 91,241.13 × 35,902.98
  4. Step 4: Simplify right side
    66,118.21x = 3,275,828,600.20
  5. Step 5: Solve for x
    x = 3,275,828,600.20/66,118.21
  6. Step 6: Final answer
    x = 49,545.03

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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.