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Finding the Fourth Proportional to 60.47, 90.75 and 24.40

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Solution

The fourth proportional to 60.47, 90.75 and 24.40 is: 36.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.47 : 90.75 = 24.40 : x
  2. Step 2: Convert to fraction form
    60.47/90.75 = 24.40/x
  3. Step 3: Cross multiply
    60.47x = 90.75 × 24.40
  4. Step 4: Simplify right side
    60.47x = 2,214.50
  5. Step 5: Solve for x
    x = 2,214.50/60.47
  6. Step 6: Final answer
    x = 36.62

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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.