Home / 65,917-90,965.48-37,622.08

Finding the Fourth Proportional to 65,917, 90,965.48 and 37,622.08

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Solution

The fourth proportional to 65,917, 90,965.48 and 37,622.08 is: 51,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,917 : 90,965.48 = 37,622.08 : x
  2. Step 2: Convert to fraction form
    65,917/90,965.48 = 37,622.08/x
  3. Step 3: Cross multiply
    65,917x = 90,965.48 × 37,622.08
  4. Step 4: Simplify right side
    65,917x = 3,422,310,565.80
  5. Step 5: Solve for x
    x = 3,422,310,565.80/65,917
  6. Step 6: Final answer
    x = 51,918.48

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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.