Home / 99,473.40-137,270.52-54,152.28

Finding the Fourth Proportional to 99,473.40, 137,270.52 and 54,152.28

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Solution

The fourth proportional to 99,473.40, 137,270.52 and 54,152.28 is: 74,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,473.40 : 137,270.52 = 54,152.28 : x
  2. Step 2: Convert to fraction form
    99,473.40/137,270.52 = 54,152.28/x
  3. Step 3: Cross multiply
    99,473.40x = 137,270.52 × 54,152.28
  4. Step 4: Simplify right side
    99,473.40x = 7,433,511,634.79
  5. Step 5: Solve for x
    x = 7,433,511,634.79/99,473.40
  6. Step 6: Final answer
    x = 74,728.64

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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.