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Finding the Fourth Proportional to 77,481.68, 116,222.52 and 54,153.68

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Solution

The fourth proportional to 77,481.68, 116,222.52 and 54,153.68 is: 81,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,481.68 : 116,222.52 = 54,153.68 : x
  2. Step 2: Convert to fraction form
    77,481.68/116,222.52 = 54,153.68/x
  3. Step 3: Cross multiply
    77,481.68x = 116,222.52 × 54,153.68
  4. Step 4: Simplify right side
    77,481.68x = 6,293,877,156.87
  5. Step 5: Solve for x
    x = 6,293,877,156.87/77,481.68
  6. Step 6: Final answer
    x = 81,230.52

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1.5x scale

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.