Home / 56,779.89-78,272.24-36,359.79

Finding the Fourth Proportional to 56,779.89, 78,272.24 and 36,359.79

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Solution

The fourth proportional to 56,779.89, 78,272.24 and 36,359.79 is: 50,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,779.89 : 78,272.24 = 36,359.79 : x
  2. Step 2: Convert to fraction form
    56,779.89/78,272.24 = 36,359.79/x
  3. Step 3: Cross multiply
    56,779.89x = 78,272.24 × 36,359.79
  4. Step 4: Simplify right side
    56,779.89x = 2,845,962,027.43
  5. Step 5: Solve for x
    x = 2,845,962,027.43/56,779.89
  6. Step 6: Final answer
    x = 50,122.71

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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.