Home / 66,143.66-91,243.26-41,901.86

Finding the Fourth Proportional to 66,143.66, 91,243.26 and 41,901.86

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Solution

The fourth proportional to 66,143.66, 91,243.26 and 41,901.86 is: 57,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143.66 : 91,243.26 = 41,901.86 : x
  2. Step 2: Convert to fraction form
    66,143.66/91,243.26 = 41,901.86/x
  3. Step 3: Cross multiply
    66,143.66x = 91,243.26 × 41,901.86
  4. Step 4: Simplify right side
    66,143.66x = 3,823,262,306.46
  5. Step 5: Solve for x
    x = 3,823,262,306.46/66,143.66
  6. Step 6: Final answer
    x = 57,802.40

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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.