Home / 66,145.67-91,289-37,850.75

Finding the Fourth Proportional to 66,145.67, 91,289 and 37,850.75

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Solution

The fourth proportional to 66,145.67, 91,289 and 37,850.75 is: 52,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,145.67 : 91,289 = 37,850.75 : x
  2. Step 2: Convert to fraction form
    66,145.67/91,289 = 37,850.75/x
  3. Step 3: Cross multiply
    66,145.67x = 91,289 × 37,850.75
  4. Step 4: Simplify right side
    66,145.67x = 3,455,357,116.75
  5. Step 5: Solve for x
    x = 3,455,357,116.75/66,145.67
  6. Step 6: Final answer
    x = 52,238.60

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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.