Home / 65,932.89-90,987.34-35,718.31

Finding the Fourth Proportional to 65,932.89, 90,987.34 and 35,718.31

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Solution

The fourth proportional to 65,932.89, 90,987.34 and 35,718.31 is: 49,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,932.89 : 90,987.34 = 35,718.31 : x
  2. Step 2: Convert to fraction form
    65,932.89/90,987.34 = 35,718.31/x
  3. Step 3: Cross multiply
    65,932.89x = 90,987.34 × 35,718.31
  4. Step 4: Simplify right side
    65,932.89x = 3,249,914,016.20
  5. Step 5: Solve for x
    x = 3,249,914,016.20/65,932.89
  6. Step 6: Final answer
    x = 49,291.24

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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.