Home / 55,351.50-76,377.36-31,475.53

Finding the Fourth Proportional to 55,351.50, 76,377.36 and 31,475.53

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Solution

The fourth proportional to 55,351.50, 76,377.36 and 31,475.53 is: 43,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,351.50 : 76,377.36 = 31,475.53 : x
  2. Step 2: Convert to fraction form
    55,351.50/76,377.36 = 31,475.53/x
  3. Step 3: Cross multiply
    55,351.50x = 76,377.36 × 31,475.53
  4. Step 4: Simplify right side
    55,351.50x = 2,404,017,886.00
  5. Step 5: Solve for x
    x = 2,404,017,886.00/55,351.50
  6. Step 6: Final answer
    x = 43,431.85

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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.