Home / 99,590.16-137,432.64-54,268.44

Finding the Fourth Proportional to 99,590.16, 137,432.64 and 54,268.44

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Solution

The fourth proportional to 99,590.16, 137,432.64 and 54,268.44 is: 74,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,590.16 : 137,432.64 = 54,268.44 : x
  2. Step 2: Convert to fraction form
    99,590.16/137,432.64 = 54,268.44/x
  3. Step 3: Cross multiply
    99,590.16x = 137,432.64 × 54,268.44
  4. Step 4: Simplify right side
    99,590.16x = 7,458,254,977.88
  5. Step 5: Solve for x
    x = 7,458,254,977.88/99,590.16
  6. Step 6: Final answer
    x = 74,889.48

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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.