Home / 66,550.12-91,806.02-39,673.69

Finding the Fourth Proportional to 66,550.12, 91,806.02 and 39,673.69

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Solution

The fourth proportional to 66,550.12, 91,806.02 and 39,673.69 is: 54,729.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,550.12 : 91,806.02 = 39,673.69 : x
  2. Step 2: Convert to fraction form
    66,550.12/91,806.02 = 39,673.69/x
  3. Step 3: Cross multiply
    66,550.12x = 91,806.02 × 39,673.69
  4. Step 4: Simplify right side
    66,550.12x = 3,642,282,920.22
  5. Step 5: Solve for x
    x = 3,642,282,920.22/66,550.12
  6. Step 6: Final answer
    x = 54,729.93

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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.