Home / 67,621.65-101,464.37-30,178.38

Finding the Fourth Proportional to 67,621.65, 101,464.37 and 30,178.38

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Solution

The fourth proportional to 67,621.65, 101,464.37 and 30,178.38 is: 45,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,621.65 : 101,464.37 = 30,178.38 : x
  2. Step 2: Convert to fraction form
    67,621.65/101,464.37 = 30,178.38/x
  3. Step 3: Cross multiply
    67,621.65x = 101,464.37 × 30,178.38
  4. Step 4: Simplify right side
    67,621.65x = 3,062,030,657.09
  5. Step 5: Solve for x
    x = 3,062,030,657.09/67,621.65
  6. Step 6: Final answer
    x = 45,281.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.