Home / 68,820.32-94,917.26-56,862.90

Finding the Fourth Proportional to 68,820.32, 94,917.26 and 56,862.90

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Solution

The fourth proportional to 68,820.32, 94,917.26 and 56,862.90 is: 78,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,820.32 : 94,917.26 = 56,862.90 : x
  2. Step 2: Convert to fraction form
    68,820.32/94,917.26 = 56,862.90/x
  3. Step 3: Cross multiply
    68,820.32x = 94,917.26 × 56,862.90
  4. Step 4: Simplify right side
    68,820.32x = 5,397,270,805.81
  5. Step 5: Solve for x
    x = 5,397,270,805.81/68,820.32
  6. Step 6: Final answer
    x = 78,425.54

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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.