Home / 74,260.42-111,388.78-21,670.36

Finding the Fourth Proportional to 74,260.42, 111,388.78 and 21,670.36

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Solution

The fourth proportional to 74,260.42, 111,388.78 and 21,670.36 is: 32,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.42 : 111,388.78 = 21,670.36 : x
  2. Step 2: Convert to fraction form
    74,260.42/111,388.78 = 21,670.36/x
  3. Step 3: Cross multiply
    74,260.42x = 111,388.78 × 21,670.36
  4. Step 4: Simplify right side
    74,260.42x = 2,413,834,962.56
  5. Step 5: Solve for x
    x = 2,413,834,962.56/74,260.42
  6. Step 6: Final answer
    x = 32,505.00

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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.