Home / 51,861.06-77,801.31-20,696.58

Finding the Fourth Proportional to 51,861.06, 77,801.31 and 20,696.58

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Solution

The fourth proportional to 51,861.06, 77,801.31 and 20,696.58 is: 31,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,861.06 : 77,801.31 = 20,696.58 : x
  2. Step 2: Convert to fraction form
    51,861.06/77,801.31 = 20,696.58/x
  3. Step 3: Cross multiply
    51,861.06x = 77,801.31 × 20,696.58
  4. Step 4: Simplify right side
    51,861.06x = 1,610,221,036.52
  5. Step 5: Solve for x
    x = 1,610,221,036.52/51,861.06
  6. Step 6: Final answer
    x = 31,048.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.