Home / 89,815.71-123,945.65-51,577.77

Finding the Fourth Proportional to 89,815.71, 123,945.65 and 51,577.77

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Solution

The fourth proportional to 89,815.71, 123,945.65 and 51,577.77 is: 71,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815.71 : 123,945.65 = 51,577.77 : x
  2. Step 2: Convert to fraction form
    89,815.71/123,945.65 = 51,577.77/x
  3. Step 3: Cross multiply
    89,815.71x = 123,945.65 × 51,577.77
  4. Step 4: Simplify right side
    89,815.71x = 6,392,839,970.31
  5. Step 5: Solve for x
    x = 6,392,839,970.31/89,815.71
  6. Step 6: Final answer
    x = 71,177.30

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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.