Home / 68,511.52-94,542.96-40,220.32

Finding the Fourth Proportional to 68,511.52, 94,542.96 and 40,220.32

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Solution

The fourth proportional to 68,511.52, 94,542.96 and 40,220.32 is: 55,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511.52 : 94,542.96 = 40,220.32 : x
  2. Step 2: Convert to fraction form
    68,511.52/94,542.96 = 40,220.32/x
  3. Step 3: Cross multiply
    68,511.52x = 94,542.96 × 40,220.32
  4. Step 4: Simplify right side
    68,511.52x = 3,802,548,104.95
  5. Step 5: Solve for x
    x = 3,802,548,104.95/68,511.52
  6. Step 6: Final answer
    x = 55,502.32

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1.5x scale

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.