Home / 56,917.22-85,435.95-31,978.58

Finding the Fourth Proportional to 56,917.22, 85,435.95 and 31,978.58

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Solution

The fourth proportional to 56,917.22, 85,435.95 and 31,978.58 is: 48,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.22 : 85,435.95 = 31,978.58 : x
  2. Step 2: Convert to fraction form
    56,917.22/85,435.95 = 31,978.58/x
  3. Step 3: Cross multiply
    56,917.22x = 85,435.95 × 31,978.58
  4. Step 4: Simplify right side
    56,917.22x = 2,732,120,361.95
  5. Step 5: Solve for x
    x = 2,732,120,361.95/56,917.22
  6. Step 6: Final answer
    x = 48,001.65

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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.