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Finding the Fourth Proportional to 55,432.99, 83,134.28 and 19,887.73

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Solution

The fourth proportional to 55,432.99, 83,134.28 and 19,887.73 is: 29,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,432.99 : 83,134.28 = 19,887.73 : x
  2. Step 2: Convert to fraction form
    55,432.99/83,134.28 = 19,887.73/x
  3. Step 3: Cross multiply
    55,432.99x = 83,134.28 × 19,887.73
  4. Step 4: Simplify right side
    55,432.99x = 1,653,351,956.27
  5. Step 5: Solve for x
    x = 1,653,351,956.27/55,432.99
  6. Step 6: Final answer
    x = 29,826.14

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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.