Home / 68,717.80-94,826.10-40,418.02

Finding the Fourth Proportional to 68,717.80, 94,826.10 and 40,418.02

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Solution

The fourth proportional to 68,717.80, 94,826.10 and 40,418.02 is: 55,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.80 : 94,826.10 = 40,418.02 : x
  2. Step 2: Convert to fraction form
    68,717.80/94,826.10 = 40,418.02/x
  3. Step 3: Cross multiply
    68,717.80x = 94,826.10 × 40,418.02
  4. Step 4: Simplify right side
    68,717.80x = 3,832,683,206.32
  5. Step 5: Solve for x
    x = 3,832,683,206.32/68,717.80
  6. Step 6: Final answer
    x = 55,774.24

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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.