Home / 49,380.86-74,078.98-21,308.82

Finding the Fourth Proportional to 49,380.86, 74,078.98 and 21,308.82

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Solution

The fourth proportional to 49,380.86, 74,078.98 and 21,308.82 is: 31,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,380.86 : 74,078.98 = 21,308.82 : x
  2. Step 2: Convert to fraction form
    49,380.86/74,078.98 = 21,308.82/x
  3. Step 3: Cross multiply
    49,380.86x = 74,078.98 × 21,308.82
  4. Step 4: Simplify right side
    49,380.86x = 1,578,535,650.60
  5. Step 5: Solve for x
    x = 1,578,535,650.60/49,380.86
  6. Step 6: Final answer
    x = 31,966.55

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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.