Home / 65,826.43-90,840.10-35,611.66

Finding the Fourth Proportional to 65,826.43, 90,840.10 and 35,611.66

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Solution

The fourth proportional to 65,826.43, 90,840.10 and 35,611.66 is: 49,143.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,826.43 : 90,840.10 = 35,611.66 : x
  2. Step 2: Convert to fraction form
    65,826.43/90,840.10 = 35,611.66/x
  3. Step 3: Cross multiply
    65,826.43x = 90,840.10 × 35,611.66
  4. Step 4: Simplify right side
    65,826.43x = 3,234,966,755.57
  5. Step 5: Solve for x
    x = 3,234,966,755.57/65,826.43
  6. Step 6: Final answer
    x = 49,143.89

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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.