Home / 65,918.24-90,962.16-37,620.08

Finding the Fourth Proportional to 65,918.24, 90,962.16 and 37,620.08

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Solution

The fourth proportional to 65,918.24, 90,962.16 and 37,620.08 is: 51,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,918.24 : 90,962.16 = 37,620.08 : x
  2. Step 2: Convert to fraction form
    65,918.24/90,962.16 = 37,620.08/x
  3. Step 3: Cross multiply
    65,918.24x = 90,962.16 × 37,620.08
  4. Step 4: Simplify right side
    65,918.24x = 3,422,003,736.17
  5. Step 5: Solve for x
    x = 3,422,003,736.17/65,918.24
  6. Step 6: Final answer
    x = 51,912.85

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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.