Home / 99,573.21-137,410.25-54,251.05

Finding the Fourth Proportional to 99,573.21, 137,410.25 and 54,251.05

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Solution

The fourth proportional to 99,573.21, 137,410.25 and 54,251.05 is: 74,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.21 : 137,410.25 = 54,251.05 : x
  2. Step 2: Convert to fraction form
    99,573.21/137,410.25 = 54,251.05/x
  3. Step 3: Cross multiply
    99,573.21x = 137,410.25 × 54,251.05
  4. Step 4: Simplify right side
    99,573.21x = 7,454,650,343.26
  5. Step 5: Solve for x
    x = 7,454,650,343.26/99,573.21
  6. Step 6: Final answer
    x = 74,866.02

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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.