Home / 47,617.80-65,718.66-31,278.96

Finding the Fourth Proportional to 47,617.80, 65,718.66 and 31,278.96

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Solution

The fourth proportional to 47,617.80, 65,718.66 and 31,278.96 is: 43,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,617.80 : 65,718.66 = 31,278.96 : x
  2. Step 2: Convert to fraction form
    47,617.80/65,718.66 = 31,278.96/x
  3. Step 3: Cross multiply
    47,617.80x = 65,718.66 × 31,278.96
  4. Step 4: Simplify right side
    47,617.80x = 2,055,611,337.39
  5. Step 5: Solve for x
    x = 2,055,611,337.39/47,617.80
  6. Step 6: Final answer
    x = 43,168.97

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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.