Home / 74,141.78-111,159.81-34,677.36

Finding the Fourth Proportional to 74,141.78, 111,159.81 and 34,677.36

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Solution

The fourth proportional to 74,141.78, 111,159.81 and 34,677.36 is: 51,991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,141.78 : 111,159.81 = 34,677.36 : x
  2. Step 2: Convert to fraction form
    74,141.78/111,159.81 = 34,677.36/x
  3. Step 3: Cross multiply
    74,141.78x = 111,159.81 × 34,677.36
  4. Step 4: Simplify right side
    74,141.78x = 3,854,728,748.90
  5. Step 5: Solve for x
    x = 3,854,728,748.90/74,141.78
  6. Step 6: Final answer
    x = 51,991.32

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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.