Home / 65,422.13-90,287.21-37,129.64

Finding the Fourth Proportional to 65,422.13, 90,287.21 and 37,129.64

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Solution

The fourth proportional to 65,422.13, 90,287.21 and 37,129.64 is: 51,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,422.13 : 90,287.21 = 37,129.64 : x
  2. Step 2: Convert to fraction form
    65,422.13/90,287.21 = 37,129.64/x
  3. Step 3: Cross multiply
    65,422.13x = 90,287.21 × 37,129.64
  4. Step 4: Simplify right side
    65,422.13x = 3,352,331,418.26
  5. Step 5: Solve for x
    x = 3,352,331,418.26/65,422.13
  6. Step 6: Final answer
    x = 51,241.55

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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.