Home / 99,908.04-137,873.70-54,585.48

Finding the Fourth Proportional to 99,908.04, 137,873.70 and 54,585.48

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Solution

The fourth proportional to 99,908.04, 137,873.70 and 54,585.48 is: 75,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.04 : 137,873.70 = 54,585.48 : x
  2. Step 2: Convert to fraction form
    99,908.04/137,873.70 = 54,585.48/x
  3. Step 3: Cross multiply
    99,908.04x = 137,873.70 × 54,585.48
  4. Step 4: Simplify right side
    99,908.04x = 7,525,902,093.88
  5. Step 5: Solve for x
    x = 7,525,902,093.88/99,908.04
  6. Step 6: Final answer
    x = 75,328.29

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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.