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Finding the Fourth Proportional to 75,702.56, 104,557.08 and 51,787.28

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Solution

The fourth proportional to 75,702.56, 104,557.08 and 51,787.28 is: 71,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,702.56 : 104,557.08 = 51,787.28 : x
  2. Step 2: Convert to fraction form
    75,702.56/104,557.08 = 51,787.28/x
  3. Step 3: Cross multiply
    75,702.56x = 104,557.08 × 51,787.28
  4. Step 4: Simplify right side
    75,702.56x = 5,414,726,777.94
  5. Step 5: Solve for x
    x = 5,414,726,777.94/75,702.56
  6. Step 6: Final answer
    x = 71,526.34

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1.5x scale

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.