Home / 56,170.54-77,515.29-31,019.98

Finding the Fourth Proportional to 56,170.54, 77,515.29 and 31,019.98

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Solution

The fourth proportional to 56,170.54, 77,515.29 and 31,019.98 is: 42,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,170.54 : 77,515.29 = 31,019.98 : x
  2. Step 2: Convert to fraction form
    56,170.54/77,515.29 = 31,019.98/x
  3. Step 3: Cross multiply
    56,170.54x = 77,515.29 × 31,019.98
  4. Step 4: Simplify right side
    56,170.54x = 2,404,522,745.49
  5. Step 5: Solve for x
    x = 2,404,522,745.49/56,170.54
  6. Step 6: Final answer
    x = 42,807.54

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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.