Home / 76,220.29-114,330.43-31,822.87

Finding the Fourth Proportional to 76,220.29, 114,330.43 and 31,822.87

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Solution

The fourth proportional to 76,220.29, 114,330.43 and 31,822.87 is: 47,734.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,220.29 : 114,330.43 = 31,822.87 : x
  2. Step 2: Convert to fraction form
    76,220.29/114,330.43 = 31,822.87/x
  3. Step 3: Cross multiply
    76,220.29x = 114,330.43 × 31,822.87
  4. Step 4: Simplify right side
    76,220.29x = 3,638,322,410.93
  5. Step 5: Solve for x
    x = 3,638,322,410.93/76,220.29
  6. Step 6: Final answer
    x = 47,734.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.