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Finding the Fourth Proportional to 76,522.24, 114,789.98 and 21,118.24

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Solution

The fourth proportional to 76,522.24, 114,789.98 and 21,118.24 is: 31,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,522.24 : 114,789.98 = 21,118.24 : x
  2. Step 2: Convert to fraction form
    76,522.24/114,789.98 = 21,118.24/x
  3. Step 3: Cross multiply
    76,522.24x = 114,789.98 × 21,118.24
  4. Step 4: Simplify right side
    76,522.24x = 2,424,162,347.24
  5. Step 5: Solve for x
    x = 2,424,162,347.24/76,522.24
  6. Step 6: Final answer
    x = 31,679.19

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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.