Home / 66,121.18-91,246.71-35,905.93

Finding the Fourth Proportional to 66,121.18, 91,246.71 and 35,905.93

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Solution

The fourth proportional to 66,121.18, 91,246.71 and 35,905.93 is: 49,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.18 : 91,246.71 = 35,905.93 : x
  2. Step 2: Convert to fraction form
    66,121.18/91,246.71 = 35,905.93/x
  3. Step 3: Cross multiply
    66,121.18x = 91,246.71 × 35,905.93
  4. Step 4: Simplify right side
    66,121.18x = 3,276,297,981.99
  5. Step 5: Solve for x
    x = 3,276,297,981.99/66,121.18
  6. Step 6: Final answer
    x = 49,549.90

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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.