Home / 56,362.25-77,782.35-31,211.75

Finding the Fourth Proportional to 56,362.25, 77,782.35 and 31,211.75

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Solution

The fourth proportional to 56,362.25, 77,782.35 and 31,211.75 is: 43,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,362.25 : 77,782.35 = 31,211.75 : x
  2. Step 2: Convert to fraction form
    56,362.25/77,782.35 = 31,211.75/x
  3. Step 3: Cross multiply
    56,362.25x = 77,782.35 × 31,211.75
  4. Step 4: Simplify right side
    56,362.25x = 2,427,723,262.61
  5. Step 5: Solve for x
    x = 2,427,723,262.61/56,362.25
  6. Step 6: Final answer
    x = 43,073.57

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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.