Home / 99,364.20-137,121.24-54,041.20

Finding the Fourth Proportional to 99,364.20, 137,121.24 and 54,041.20

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Solution

The fourth proportional to 99,364.20, 137,121.24 and 54,041.20 is: 74,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.20 : 137,121.24 = 54,041.20 : x
  2. Step 2: Convert to fraction form
    99,364.20/137,121.24 = 54,041.20/x
  3. Step 3: Cross multiply
    99,364.20x = 137,121.24 × 54,041.20
  4. Step 4: Simplify right side
    99,364.20x = 7,410,196,355.09
  5. Step 5: Solve for x
    x = 7,410,196,355.09/99,364.20
  6. Step 6: Final answer
    x = 74,576.12

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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.