Home / 66,109.01-91,208.30-37,424.75

Finding the Fourth Proportional to 66,109.01, 91,208.30 and 37,424.75

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Solution

The fourth proportional to 66,109.01, 91,208.30 and 37,424.75 is: 51,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.01 : 91,208.30 = 37,424.75 : x
  2. Step 2: Convert to fraction form
    66,109.01/91,208.30 = 37,424.75/x
  3. Step 3: Cross multiply
    66,109.01x = 91,208.30 × 37,424.75
  4. Step 4: Simplify right side
    66,109.01x = 3,413,447,182.26
  5. Step 5: Solve for x
    x = 3,413,447,182.26/66,109.01
  6. Step 6: Final answer
    x = 51,633.62

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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.