Home / 99,017.25-136,652.45-54,313.89

Finding the Fourth Proportional to 99,017.25, 136,652.45 and 54,313.89

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Solution

The fourth proportional to 99,017.25, 136,652.45 and 54,313.89 is: 74,957.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,017.25 : 136,652.45 = 54,313.89 : x
  2. Step 2: Convert to fraction form
    99,017.25/136,652.45 = 54,313.89/x
  3. Step 3: Cross multiply
    99,017.25x = 136,652.45 × 54,313.89
  4. Step 4: Simplify right side
    99,017.25x = 7,422,125,865.96
  5. Step 5: Solve for x
    x = 7,422,125,865.96/99,017.25
  6. Step 6: Final answer
    x = 74,957.91

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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.