Home / 68,785.15-94,943.19-40,507.24

Finding the Fourth Proportional to 68,785.15, 94,943.19 and 40,507.24

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Solution

The fourth proportional to 68,785.15, 94,943.19 and 40,507.24 is: 55,911.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.15 : 94,943.19 = 40,507.24 : x
  2. Step 2: Convert to fraction form
    68,785.15/94,943.19 = 40,507.24/x
  3. Step 3: Cross multiply
    68,785.15x = 94,943.19 × 40,507.24
  4. Step 4: Simplify right side
    68,785.15x = 3,845,886,583.70
  5. Step 5: Solve for x
    x = 3,845,886,583.70/68,785.15
  6. Step 6: Final answer
    x = 55,911.58

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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.