Home / 68,595.20-94,642.08-40,290.56

Finding the Fourth Proportional to 68,595.20, 94,642.08 and 40,290.56

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Solution

The fourth proportional to 68,595.20, 94,642.08 and 40,290.56 is: 55,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,595.20 : 94,642.08 = 40,290.56 : x
  2. Step 2: Convert to fraction form
    68,595.20/94,642.08 = 40,290.56/x
  3. Step 3: Cross multiply
    68,595.20x = 94,642.08 × 40,290.56
  4. Step 4: Simplify right side
    68,595.20x = 3,813,182,402.76
  5. Step 5: Solve for x
    x = 3,813,182,402.76/68,595.20
  6. Step 6: Final answer
    x = 55,589.64

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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.