Home / 99,591.08-137,434.44-54,271.04

Finding the Fourth Proportional to 99,591.08, 137,434.44 and 54,271.04

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Solution

The fourth proportional to 99,591.08, 137,434.44 and 54,271.04 is: 74,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,591.08 : 137,434.44 = 54,271.04 : x
  2. Step 2: Convert to fraction form
    99,591.08/137,434.44 = 54,271.04/x
  3. Step 3: Cross multiply
    99,591.08x = 137,434.44 × 54,271.04
  4. Step 4: Simplify right side
    99,591.08x = 7,458,709,990.62
  5. Step 5: Solve for x
    x = 7,458,709,990.62/99,591.08
  6. Step 6: Final answer
    x = 74,893.35

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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.