Home / 68,862.15-95,089.55-65,319.21

Finding the Fourth Proportional to 68,862.15, 95,089.55 and 65,319.21

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Solution

The fourth proportional to 68,862.15, 95,089.55 and 65,319.21 is: 90,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,862.15 : 95,089.55 = 65,319.21 : x
  2. Step 2: Convert to fraction form
    68,862.15/95,089.55 = 65,319.21/x
  3. Step 3: Cross multiply
    68,862.15x = 95,089.55 × 65,319.21
  4. Step 4: Simplify right side
    68,862.15x = 6,211,173,958.66
  5. Step 5: Solve for x
    x = 6,211,173,958.66/68,862.15
  6. Step 6: Final answer
    x = 90,197.21

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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.