Home / 85,295.22-127,939.15-29,140.34

Finding the Fourth Proportional to 85,295.22, 127,939.15 and 29,140.34

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Solution

The fourth proportional to 85,295.22, 127,939.15 and 29,140.34 is: 43,709.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,295.22 : 127,939.15 = 29,140.34 : x
  2. Step 2: Convert to fraction form
    85,295.22/127,939.15 = 29,140.34/x
  3. Step 3: Cross multiply
    85,295.22x = 127,939.15 × 29,140.34
  4. Step 4: Simplify right side
    85,295.22x = 3,728,190,330.31
  5. Step 5: Solve for x
    x = 3,728,190,330.31/85,295.22
  6. Step 6: Final answer
    x = 43,709.25

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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.