Home / 73,138.56-109,642.15-26,380.50

Finding the Fourth Proportional to 73,138.56, 109,642.15 and 26,380.50

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Solution

The fourth proportional to 73,138.56, 109,642.15 and 26,380.50 is: 39,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.56 : 109,642.15 = 26,380.50 : x
  2. Step 2: Convert to fraction form
    73,138.56/109,642.15 = 26,380.50/x
  3. Step 3: Cross multiply
    73,138.56x = 109,642.15 × 26,380.50
  4. Step 4: Simplify right side
    73,138.56x = 2,892,414,738.08
  5. Step 5: Solve for x
    x = 2,892,414,738.08/73,138.56
  6. Step 6: Final answer
    x = 39,547.06

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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.