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Finding the Fourth Proportional to 84,013.64, 115,938.45 and 45,773.07

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Solution

The fourth proportional to 84,013.64, 115,938.45 and 45,773.07 is: 63,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,013.64 : 115,938.45 = 45,773.07 : x
  2. Step 2: Convert to fraction form
    84,013.64/115,938.45 = 45,773.07/x
  3. Step 3: Cross multiply
    84,013.64x = 115,938.45 × 45,773.07
  4. Step 4: Simplify right side
    84,013.64x = 5,306,858,787.54
  5. Step 5: Solve for x
    x = 5,306,858,787.54/84,013.64
  6. Step 6: Final answer
    x = 63,166.64

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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.