Home / 68,165.12-94,041.72-42,311.54

Finding the Fourth Proportional to 68,165.12, 94,041.72 and 42,311.54

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Solution

The fourth proportional to 68,165.12, 94,041.72 and 42,311.54 is: 58,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,165.12 : 94,041.72 = 42,311.54 : x
  2. Step 2: Convert to fraction form
    68,165.12/94,041.72 = 42,311.54/x
  3. Step 3: Cross multiply
    68,165.12x = 94,041.72 × 42,311.54
  4. Step 4: Simplify right side
    68,165.12x = 3,979,049,527.24
  5. Step 5: Solve for x
    x = 3,979,049,527.24/68,165.12
  6. Step 6: Final answer
    x = 58,373.69

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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.