Home / 49,791.36-74,681.12-18,618.24

Finding the Fourth Proportional to 49,791.36, 74,681.12 and 18,618.24

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Solution

The fourth proportional to 49,791.36, 74,681.12 and 18,618.24 is: 27,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,791.36 : 74,681.12 = 18,618.24 : x
  2. Step 2: Convert to fraction form
    49,791.36/74,681.12 = 18,618.24/x
  3. Step 3: Cross multiply
    49,791.36x = 74,681.12 × 18,618.24
  4. Step 4: Simplify right side
    49,791.36x = 1,390,431,015.63
  5. Step 5: Solve for x
    x = 1,390,431,015.63/49,791.36
  6. Step 6: Final answer
    x = 27,925.15

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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.