Home / 68,486.11-94,478.13-42,979.82

Finding the Fourth Proportional to 68,486.11, 94,478.13 and 42,979.82

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Solution

The fourth proportional to 68,486.11, 94,478.13 and 42,979.82 is: 59,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,486.11 : 94,478.13 = 42,979.82 : x
  2. Step 2: Convert to fraction form
    68,486.11/94,478.13 = 42,979.82/x
  3. Step 3: Cross multiply
    68,486.11x = 94,478.13 × 42,979.82
  4. Step 4: Simplify right side
    68,486.11x = 4,060,652,548.95
  5. Step 5: Solve for x
    x = 4,060,652,548.95/68,486.11
  6. Step 6: Final answer
    x = 59,291.62

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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.