Home / 65,918.22-90,933.48-40,069.77

Finding the Fourth Proportional to 65,918.22, 90,933.48 and 40,069.77

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Solution

The fourth proportional to 65,918.22, 90,933.48 and 40,069.77 is: 55,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,918.22 : 90,933.48 = 40,069.77 : x
  2. Step 2: Convert to fraction form
    65,918.22/90,933.48 = 40,069.77/x
  3. Step 3: Cross multiply
    65,918.22x = 90,933.48 × 40,069.77
  4. Step 4: Simplify right side
    65,918.22x = 3,643,683,628.90
  5. Step 5: Solve for x
    x = 3,643,683,628.90/65,918.22
  6. Step 6: Final answer
    x = 55,275.82

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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.