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Finding the Fourth Proportional to 37.59, 56.40 and 31.53

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Solution

The fourth proportional to 37.59, 56.40 and 31.53 is: 47.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.59 : 56.40 = 31.53 : x
  2. Step 2: Convert to fraction form
    37.59/56.40 = 31.53/x
  3. Step 3: Cross multiply
    37.59x = 56.40 × 31.53
  4. Step 4: Simplify right side
    37.59x = 1,778.29
  5. Step 5: Solve for x
    x = 1,778.29/37.59
  6. Step 6: Final answer
    x = 47.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.