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Finding the Fourth Proportional to 84,898.52, 127,153.84 and 40,556.64

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Solution

The fourth proportional to 84,898.52, 127,153.84 and 40,556.64 is: 60,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,898.52 : 127,153.84 = 40,556.64 : x
  2. Step 2: Convert to fraction form
    84,898.52/127,153.84 = 40,556.64/x
  3. Step 3: Cross multiply
    84,898.52x = 127,153.84 × 40,556.64
  4. Step 4: Simplify right side
    84,898.52x = 5,156,932,513.50
  5. Step 5: Solve for x
    x = 5,156,932,513.50/84,898.52
  6. Step 6: Final answer
    x = 60,742.31

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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.