Home / 99,850.32-137,782.08-57,422.52

Finding the Fourth Proportional to 99,850.32, 137,782.08 and 57,422.52

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Solution

The fourth proportional to 99,850.32, 137,782.08 and 57,422.52 is: 79,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,850.32 : 137,782.08 = 57,422.52 : x
  2. Step 2: Convert to fraction form
    99,850.32/137,782.08 = 57,422.52/x
  3. Step 3: Cross multiply
    99,850.32x = 137,782.08 × 57,422.52
  4. Step 4: Simplify right side
    99,850.32x = 7,911,794,244.44
  5. Step 5: Solve for x
    x = 7,911,794,244.44/99,850.32
  6. Step 6: Final answer
    x = 79,236.54

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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.