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Finding the Fourth Proportional to 84,843.35, 127,318.66 and 47,427.98

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Solution

The fourth proportional to 84,843.35, 127,318.66 and 47,427.98 is: 71,171.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,843.35 : 127,318.66 = 47,427.98 : x
  2. Step 2: Convert to fraction form
    84,843.35/127,318.66 = 47,427.98/x
  3. Step 3: Cross multiply
    84,843.35x = 127,318.66 × 47,427.98
  4. Step 4: Simplify right side
    84,843.35x = 6,038,466,223.51
  5. Step 5: Solve for x
    x = 6,038,466,223.51/84,843.35
  6. Step 6: Final answer
    x = 71,171.95

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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.