Home / 74,264.72-111,400.86-21,678.17

Finding the Fourth Proportional to 74,264.72, 111,400.86 and 21,678.17

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Solution

The fourth proportional to 74,264.72, 111,400.86 and 21,678.17 is: 32,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,264.72 : 111,400.86 = 21,678.17 : x
  2. Step 2: Convert to fraction form
    74,264.72/111,400.86 = 21,678.17/x
  3. Step 3: Cross multiply
    74,264.72x = 111,400.86 × 21,678.17
  4. Step 4: Simplify right side
    74,264.72x = 2,414,966,781.23
  5. Step 5: Solve for x
    x = 2,414,966,781.23/74,264.72
  6. Step 6: Final answer
    x = 32,518.36

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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.