Home / 77,869.30-107,506.31-51,058.58

Finding the Fourth Proportional to 77,869.30, 107,506.31 and 51,058.58

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Solution

The fourth proportional to 77,869.30, 107,506.31 and 51,058.58 is: 70,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,869.30 : 107,506.31 = 51,058.58 : x
  2. Step 2: Convert to fraction form
    77,869.30/107,506.31 = 51,058.58/x
  3. Step 3: Cross multiply
    77,869.30x = 107,506.31 × 51,058.58
  4. Step 4: Simplify right side
    77,869.30x = 5,489,119,469.98
  5. Step 5: Solve for x
    x = 5,489,119,469.98/77,869.30
  6. Step 6: Final answer
    x = 70,491.45

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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.