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Finding the Fourth Proportional to 83.10, 124.63 and 37.45

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Solution

The fourth proportional to 83.10, 124.63 and 37.45 is: 56.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.10 : 124.63 = 37.45 : x
  2. Step 2: Convert to fraction form
    83.10/124.63 = 37.45/x
  3. Step 3: Cross multiply
    83.10x = 124.63 × 37.45
  4. Step 4: Simplify right side
    83.10x = 4,666.99
  5. Step 5: Solve for x
    x = 4,666.99/83.10
  6. Step 6: Final answer
    x = 56.16

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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.