Home / 89,654.40-123,723.09-49,368.06

Finding the Fourth Proportional to 89,654.40, 123,723.09 and 49,368.06

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Solution

The fourth proportional to 89,654.40, 123,723.09 and 49,368.06 is: 68,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,654.40 : 123,723.09 = 49,368.06 : x
  2. Step 2: Convert to fraction form
    89,654.40/123,723.09 = 49,368.06/x
  3. Step 3: Cross multiply
    89,654.40x = 123,723.09 × 49,368.06
  4. Step 4: Simplify right side
    89,654.40x = 6,107,968,930.51
  5. Step 5: Solve for x
    x = 6,107,968,930.51/89,654.40
  6. Step 6: Final answer
    x = 68,127.93

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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.