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Finding the Fourth Proportional to 60.04, 89.58 and 54.72

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Solution

The fourth proportional to 60.04, 89.58 and 54.72 is: 81.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.04 : 89.58 = 54.72 : x
  2. Step 2: Convert to fraction form
    60.04/89.58 = 54.72/x
  3. Step 3: Cross multiply
    60.04x = 89.58 × 54.72
  4. Step 4: Simplify right side
    60.04x = 4,901.82
  5. Step 5: Solve for x
    x = 4,901.82/60.04
  6. Step 6: Final answer
    x = 81.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.