Home / 56,336.80-77,745.36-31,185.76

Finding the Fourth Proportional to 56,336.80, 77,745.36 and 31,185.76

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Solution

The fourth proportional to 56,336.80, 77,745.36 and 31,185.76 is: 43,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,336.80 : 77,745.36 = 31,185.76 : x
  2. Step 2: Convert to fraction form
    56,336.80/77,745.36 = 31,185.76/x
  3. Step 3: Cross multiply
    56,336.80x = 77,745.36 × 31,185.76
  4. Step 4: Simplify right side
    56,336.80x = 2,424,548,138.07
  5. Step 5: Solve for x
    x = 2,424,548,138.07/56,336.80
  6. Step 6: Final answer
    x = 43,036.67

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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.