Home / 56,438.92-77,887.19-31,907.78

Finding the Fourth Proportional to 56,438.92, 77,887.19 and 31,907.78

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Solution

The fourth proportional to 56,438.92, 77,887.19 and 31,907.78 is: 44,033.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438.92 : 77,887.19 = 31,907.78 : x
  2. Step 2: Convert to fraction form
    56,438.92/77,887.19 = 31,907.78/x
  3. Step 3: Cross multiply
    56,438.92x = 77,887.19 × 31,907.78
  4. Step 4: Simplify right side
    56,438.92x = 2,485,207,013.67
  5. Step 5: Solve for x
    x = 2,485,207,013.67/56,438.92
  6. Step 6: Final answer
    x = 44,033.57

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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.