Home / 85,274.48-127,938.36-29,115.92

Finding the Fourth Proportional to 85,274.48, 127,938.36 and 29,115.92

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Solution

The fourth proportional to 85,274.48, 127,938.36 and 29,115.92 is: 43,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,274.48 : 127,938.36 = 29,115.92 : x
  2. Step 2: Convert to fraction form
    85,274.48/127,938.36 = 29,115.92/x
  3. Step 3: Cross multiply
    85,274.48x = 127,938.36 × 29,115.92
  4. Step 4: Simplify right side
    85,274.48x = 3,725,043,054.69
  5. Step 5: Solve for x
    x = 3,725,043,054.69/85,274.48
  6. Step 6: Final answer
    x = 43,682.98

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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.