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Finding the Fourth Proportional to 60.60, 90.87 and 26.35

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Solution

The fourth proportional to 60.60, 90.87 and 26.35 is: 39.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.60 : 90.87 = 26.35 : x
  2. Step 2: Convert to fraction form
    60.60/90.87 = 26.35/x
  3. Step 3: Cross multiply
    60.60x = 90.87 × 26.35
  4. Step 4: Simplify right side
    60.60x = 2,394.42
  5. Step 5: Solve for x
    x = 2,394.42/60.60
  6. Step 6: Final answer
    x = 39.51

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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.