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Finding the Fourth Proportional to 85,304.98, 127,695.03 and 55,658.98

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Solution

The fourth proportional to 85,304.98, 127,695.03 and 55,658.98 is: 83,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,304.98 : 127,695.03 = 55,658.98 : x
  2. Step 2: Convert to fraction form
    85,304.98/127,695.03 = 55,658.98/x
  3. Step 3: Cross multiply
    85,304.98x = 127,695.03 × 55,658.98
  4. Step 4: Simplify right side
    85,304.98x = 7,107,375,120.87
  5. Step 5: Solve for x
    x = 7,107,375,120.87/85,304.98
  6. Step 6: Final answer
    x = 83,317.24

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1.5x scale

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.