Home / 66,040.18-99,058.49-18,658.54

Finding the Fourth Proportional to 66,040.18, 99,058.49 and 18,658.54

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Solution

The fourth proportional to 66,040.18, 99,058.49 and 18,658.54 is: 27,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.18 : 99,058.49 = 18,658.54 : x
  2. Step 2: Convert to fraction form
    66,040.18/99,058.49 = 18,658.54/x
  3. Step 3: Cross multiply
    66,040.18x = 99,058.49 × 18,658.54
  4. Step 4: Simplify right side
    66,040.18x = 1,848,286,798.00
  5. Step 5: Solve for x
    x = 1,848,286,798.00/66,040.18
  6. Step 6: Final answer
    x = 27,987.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.