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Finding the Fourth Proportional to 45,108.70, 67,627 and 21,404.32

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Solution

The fourth proportional to 45,108.70, 67,627 and 21,404.32 is: 32,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,108.70 : 67,627 = 21,404.32 : x
  2. Step 2: Convert to fraction form
    45,108.70/67,627 = 21,404.32/x
  3. Step 3: Cross multiply
    45,108.70x = 67,627 × 21,404.32
  4. Step 4: Simplify right side
    45,108.70x = 1,447,509,948.64
  5. Step 5: Solve for x
    x = 1,447,509,948.64/45,108.70
  6. Step 6: Final answer
    x = 32,089.37

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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.