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Finding the Fourth Proportional to 84,953.47, 127,433.45 and 43,351.87

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Solution

The fourth proportional to 84,953.47, 127,433.45 and 43,351.87 is: 65,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,953.47 : 127,433.45 = 43,351.87 : x
  2. Step 2: Convert to fraction form
    84,953.47/127,433.45 = 43,351.87/x
  3. Step 3: Cross multiply
    84,953.47x = 127,433.45 × 43,351.87
  4. Step 4: Simplify right side
    84,953.47x = 5,524,478,358.05
  5. Step 5: Solve for x
    x = 5,524,478,358.05/84,953.47
  6. Step 6: Final answer
    x = 65,029.46

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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.