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Finding the Fourth Proportional to 45,090.88, 67,591.26 and 21,356.26

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Solution

The fourth proportional to 45,090.88, 67,591.26 and 21,356.26 is: 32,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,090.88 : 67,591.26 = 21,356.26 : x
  2. Step 2: Convert to fraction form
    45,090.88/67,591.26 = 21,356.26/x
  3. Step 3: Cross multiply
    45,090.88x = 67,591.26 × 21,356.26
  4. Step 4: Simplify right side
    45,090.88x = 1,443,496,353.31
  5. Step 5: Solve for x
    x = 1,443,496,353.31/45,090.88
  6. Step 6: Final answer
    x = 32,013.05

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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.