Home / 56,486.25-77,954.67-31,335.75

Finding the Fourth Proportional to 56,486.25, 77,954.67 and 31,335.75

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Solution

The fourth proportional to 56,486.25, 77,954.67 and 31,335.75 is: 43,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,486.25 : 77,954.67 = 31,335.75 : x
  2. Step 2: Convert to fraction form
    56,486.25/77,954.67 = 31,335.75/x
  3. Step 3: Cross multiply
    56,486.25x = 77,954.67 × 31,335.75
  4. Step 4: Simplify right side
    56,486.25x = 2,442,768,050.45
  5. Step 5: Solve for x
    x = 2,442,768,050.45/56,486.25
  6. Step 6: Final answer
    x = 43,245.36

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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.