Home / 65,787.06-90,796.38-43,191.59

Finding the Fourth Proportional to 65,787.06, 90,796.38 and 43,191.59

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Solution

The fourth proportional to 65,787.06, 90,796.38 and 43,191.59 is: 59,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,787.06 : 90,796.38 = 43,191.59 : x
  2. Step 2: Convert to fraction form
    65,787.06/90,796.38 = 43,191.59/x
  3. Step 3: Cross multiply
    65,787.06x = 90,796.38 × 43,191.59
  4. Step 4: Simplify right side
    65,787.06x = 3,921,640,407.40
  5. Step 5: Solve for x
    x = 3,921,640,407.40/65,787.06
  6. Step 6: Final answer
    x = 59,611.12

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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.