Home / 65,919.22-90,952.77-39,057.09

Finding the Fourth Proportional to 65,919.22, 90,952.77 and 39,057.09

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Solution

The fourth proportional to 65,919.22, 90,952.77 and 39,057.09 is: 53,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,919.22 : 90,952.77 = 39,057.09 : x
  2. Step 2: Convert to fraction form
    65,919.22/90,952.77 = 39,057.09/x
  3. Step 3: Cross multiply
    65,919.22x = 90,952.77 × 39,057.09
  4. Step 4: Simplify right side
    65,919.22x = 3,552,350,329.03
  5. Step 5: Solve for x
    x = 3,552,350,329.03/65,919.22
  6. Step 6: Final answer
    x = 53,889.45

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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.