Home / 73,311.12-109,966.68-42,126.48

Finding the Fourth Proportional to 73,311.12, 109,966.68 and 42,126.48

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Solution

The fourth proportional to 73,311.12, 109,966.68 and 42,126.48 is: 63,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,311.12 : 109,966.68 = 42,126.48 : x
  2. Step 2: Convert to fraction form
    73,311.12/109,966.68 = 42,126.48/x
  3. Step 3: Cross multiply
    73,311.12x = 109,966.68 × 42,126.48
  4. Step 4: Simplify right side
    73,311.12x = 4,632,509,145.69
  5. Step 5: Solve for x
    x = 4,632,509,145.69/73,311.12
  6. Step 6: Final answer
    x = 63,189.72

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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.