Home / 77,221.30-106,577.49-55,992.82

Finding the Fourth Proportional to 77,221.30, 106,577.49 and 55,992.82

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Solution

The fourth proportional to 77,221.30, 106,577.49 and 55,992.82 is: 77,278.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,221.30 : 106,577.49 = 55,992.82 : x
  2. Step 2: Convert to fraction form
    77,221.30/106,577.49 = 55,992.82/x
  3. Step 3: Cross multiply
    77,221.30x = 106,577.49 × 55,992.82
  4. Step 4: Simplify right side
    77,221.30x = 5,967,574,213.62
  5. Step 5: Solve for x
    x = 5,967,574,213.62/77,221.30
  6. Step 6: Final answer
    x = 77,278.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.