Home / 56,940.99-78,577.22-31,446.84

Finding the Fourth Proportional to 56,940.99, 78,577.22 and 31,446.84

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Solution

The fourth proportional to 56,940.99, 78,577.22 and 31,446.84 is: 43,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,940.99 : 78,577.22 = 31,446.84 : x
  2. Step 2: Convert to fraction form
    56,940.99/78,577.22 = 31,446.84/x
  3. Step 3: Cross multiply
    56,940.99x = 78,577.22 × 31,446.84
  4. Step 4: Simplify right side
    56,940.99x = 2,471,005,107.75
  5. Step 5: Solve for x
    x = 2,471,005,107.75/56,940.99
  6. Step 6: Final answer
    x = 43,395.89

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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.