Home / 74,261.76-111,388.32-21,670.08

Finding the Fourth Proportional to 74,261.76, 111,388.32 and 21,670.08

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Solution

The fourth proportional to 74,261.76, 111,388.32 and 21,670.08 is: 32,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,261.76 : 111,388.32 = 21,670.08 : x
  2. Step 2: Convert to fraction form
    74,261.76/111,388.32 = 21,670.08/x
  3. Step 3: Cross multiply
    74,261.76x = 111,388.32 × 21,670.08
  4. Step 4: Simplify right side
    74,261.76x = 2,413,793,805.47
  5. Step 5: Solve for x
    x = 2,413,793,805.47/74,261.76
  6. Step 6: Final answer
    x = 32,503.86

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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.