Home / 66,140.17-99,221.20-30,636.97

Finding the Fourth Proportional to 66,140.17, 99,221.20 and 30,636.97

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Solution

The fourth proportional to 66,140.17, 99,221.20 and 30,636.97 is: 45,960.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,140.17 : 99,221.20 = 30,636.97 : x
  2. Step 2: Convert to fraction form
    66,140.17/99,221.20 = 30,636.97/x
  3. Step 3: Cross multiply
    66,140.17x = 99,221.20 × 30,636.97
  4. Step 4: Simplify right side
    66,140.17x = 3,039,836,603.12
  5. Step 5: Solve for x
    x = 3,039,836,603.12/66,140.17
  6. Step 6: Final answer
    x = 45,960.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.