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Finding the Fourth Proportional to 45.30, 62.10 and 44.99

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Solution

The fourth proportional to 45.30, 62.10 and 44.99 is: 61.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.30 : 62.10 = 44.99 : x
  2. Step 2: Convert to fraction form
    45.30/62.10 = 44.99/x
  3. Step 3: Cross multiply
    45.30x = 62.10 × 44.99
  4. Step 4: Simplify right side
    45.30x = 2,793.34
  5. Step 5: Solve for x
    x = 2,793.34/45.30
  6. Step 6: Final answer
    x = 61.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.