Home / 51,306.30-70,802.64-31,157.82

Finding the Fourth Proportional to 51,306.30, 70,802.64 and 31,157.82

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Solution

The fourth proportional to 51,306.30, 70,802.64 and 31,157.82 is: 42,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,306.30 : 70,802.64 = 31,157.82 : x
  2. Step 2: Convert to fraction form
    51,306.30/70,802.64 = 31,157.82/x
  3. Step 3: Cross multiply
    51,306.30x = 70,802.64 × 31,157.82
  4. Step 4: Simplify right side
    51,306.30x = 2,206,055,912.64
  5. Step 5: Solve for x
    x = 2,206,055,912.64/51,306.30
  6. Step 6: Final answer
    x = 42,997.76

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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.