Home / 66,919.09-92,356.05-40,061.59

Finding the Fourth Proportional to 66,919.09, 92,356.05 and 40,061.59

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Solution

The fourth proportional to 66,919.09, 92,356.05 and 40,061.59 is: 55,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.09 : 92,356.05 = 40,061.59 : x
  2. Step 2: Convert to fraction form
    66,919.09/92,356.05 = 40,061.59/x
  3. Step 3: Cross multiply
    66,919.09x = 92,356.05 × 40,061.59
  4. Step 4: Simplify right side
    66,919.09x = 3,699,930,209.12
  5. Step 5: Solve for x
    x = 3,699,930,209.12/66,919.09
  6. Step 6: Final answer
    x = 55,289.61

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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.