Home / 65,933.13-90,987.68-35,718.56

Finding the Fourth Proportional to 65,933.13, 90,987.68 and 35,718.56

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Solution

The fourth proportional to 65,933.13, 90,987.68 and 35,718.56 is: 49,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,933.13 : 90,987.68 = 35,718.56 : x
  2. Step 2: Convert to fraction form
    65,933.13/90,987.68 = 35,718.56/x
  3. Step 3: Cross multiply
    65,933.13x = 90,987.68 × 35,718.56
  4. Step 4: Simplify right side
    65,933.13x = 3,249,948,907.34
  5. Step 5: Solve for x
    x = 3,249,948,907.34/65,933.13
  6. Step 6: Final answer
    x = 49,291.59

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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.