Home / 74,068.05-111,077.40-31,921.82

Finding the Fourth Proportional to 74,068.05, 111,077.40 and 31,921.82

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Solution

The fourth proportional to 74,068.05, 111,077.40 and 31,921.82 is: 47,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,068.05 : 111,077.40 = 31,921.82 : x
  2. Step 2: Convert to fraction form
    74,068.05/111,077.40 = 31,921.82/x
  3. Step 3: Cross multiply
    74,068.05x = 111,077.40 × 31,921.82
  4. Step 4: Simplify right side
    74,068.05x = 3,545,792,213.48
  5. Step 5: Solve for x
    x = 3,545,792,213.48/74,068.05
  6. Step 6: Final answer
    x = 47,872.09

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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.