Home / 67,621.93-101,464.79-30,178.67

Finding the Fourth Proportional to 67,621.93, 101,464.79 and 30,178.67

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Solution

The fourth proportional to 67,621.93, 101,464.79 and 30,178.67 is: 45,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,621.93 : 101,464.79 = 30,178.67 : x
  2. Step 2: Convert to fraction form
    67,621.93/101,464.79 = 30,178.67/x
  3. Step 3: Cross multiply
    67,621.93x = 101,464.79 × 30,178.67
  4. Step 4: Simplify right side
    67,621.93x = 3,062,071,755.81
  5. Step 5: Solve for x
    x = 3,062,071,755.81/67,621.93
  6. Step 6: Final answer
    x = 45,282.23

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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.