Home / 56,850.50-78,453.70-31,699.46

Finding the Fourth Proportional to 56,850.50, 78,453.70 and 31,699.46

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Solution

The fourth proportional to 56,850.50, 78,453.70 and 31,699.46 is: 43,745.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,850.50 : 78,453.70 = 31,699.46 : x
  2. Step 2: Convert to fraction form
    56,850.50/78,453.70 = 31,699.46/x
  3. Step 3: Cross multiply
    56,850.50x = 78,453.70 × 31,699.46
  4. Step 4: Simplify right side
    56,850.50x = 2,486,939,925.00
  5. Step 5: Solve for x
    x = 2,486,939,925.00/56,850.50
  6. Step 6: Final answer
    x = 43,745.26

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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.