Home / 60,731.36-91,101.36-19,178

Finding the Fourth Proportional to 60,731.36, 91,101.36 and 19,178

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Solution

The fourth proportional to 60,731.36, 91,101.36 and 19,178 is: 28,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,731.36 : 91,101.36 = 19,178 : x
  2. Step 2: Convert to fraction form
    60,731.36/91,101.36 = 19,178/x
  3. Step 3: Cross multiply
    60,731.36x = 91,101.36 × 19,178
  4. Step 4: Simplify right side
    60,731.36x = 1,747,141,882.08
  5. Step 5: Solve for x
    x = 1,747,141,882.08/60,731.36
  6. Step 6: Final answer
    x = 28,768.36

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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.