Home / 66,177.67-91,338.45-39,314.99

Finding the Fourth Proportional to 66,177.67, 91,338.45 and 39,314.99

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Solution

The fourth proportional to 66,177.67, 91,338.45 and 39,314.99 is: 54,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,177.67 : 91,338.45 = 39,314.99 : x
  2. Step 2: Convert to fraction form
    66,177.67/91,338.45 = 39,314.99/x
  3. Step 3: Cross multiply
    66,177.67x = 91,338.45 × 39,314.99
  4. Step 4: Simplify right side
    66,177.67x = 3,590,969,595.10
  5. Step 5: Solve for x
    x = 3,590,969,595.10/66,177.67
  6. Step 6: Final answer
    x = 54,262.56

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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.