Home / 85,302.24-127,910.40-49,775.64

Finding the Fourth Proportional to 85,302.24, 127,910.40 and 49,775.64

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Solution

The fourth proportional to 85,302.24, 127,910.40 and 49,775.64 is: 74,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.24 : 127,910.40 = 49,775.64 : x
  2. Step 2: Convert to fraction form
    85,302.24/127,910.40 = 49,775.64/x
  3. Step 3: Cross multiply
    85,302.24x = 127,910.40 × 49,775.64
  4. Step 4: Simplify right side
    85,302.24x = 6,366,822,022.66
  5. Step 5: Solve for x
    x = 6,366,822,022.66/85,302.24
  6. Step 6: Final answer
    x = 74,638.39

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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.