Home / 77,772.42-116,669.97-38,331.90

Finding the Fourth Proportional to 77,772.42, 116,669.97 and 38,331.90

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Solution

The fourth proportional to 77,772.42, 116,669.97 and 38,331.90 is: 57,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.42 : 116,669.97 = 38,331.90 : x
  2. Step 2: Convert to fraction form
    77,772.42/116,669.97 = 38,331.90/x
  3. Step 3: Cross multiply
    77,772.42x = 116,669.97 × 38,331.90
  4. Step 4: Simplify right side
    77,772.42x = 4,472,181,623.04
  5. Step 5: Solve for x
    x = 4,472,181,623.04/77,772.42
  6. Step 6: Final answer
    x = 57,503.44

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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.