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Finding the Fourth Proportional to 85,329.89, 127,746.93 and 49,682.46

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Solution

The fourth proportional to 85,329.89, 127,746.93 and 49,682.46 is: 74,379.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,329.89 : 127,746.93 = 49,682.46 : x
  2. Step 2: Convert to fraction form
    85,329.89/127,746.93 = 49,682.46/x
  3. Step 3: Cross multiply
    85,329.89x = 127,746.93 × 49,682.46
  4. Step 4: Simplify right side
    85,329.89x = 6,346,781,739.85
  5. Step 5: Solve for x
    x = 6,346,781,739.85/85,329.89
  6. Step 6: Final answer
    x = 74,379.35

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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.