Home / 66,204.18-91,391.22-39,355.38

Finding the Fourth Proportional to 66,204.18, 91,391.22 and 39,355.38

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Solution

The fourth proportional to 66,204.18, 91,391.22 and 39,355.38 is: 54,327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,204.18 : 91,391.22 = 39,355.38 : x
  2. Step 2: Convert to fraction form
    66,204.18/91,391.22 = 39,355.38/x
  3. Step 3: Cross multiply
    66,204.18x = 91,391.22 × 39,355.38
  4. Step 4: Simplify right side
    66,204.18x = 3,596,736,191.76
  5. Step 5: Solve for x
    x = 3,596,736,191.76/66,204.18
  6. Step 6: Final answer
    x = 54,327.93

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1.5x scale

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.