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Finding the Fourth Proportional to 58.42, 88.08 and 54.50

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Solution

The fourth proportional to 58.42, 88.08 and 54.50 is: 82.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.42 : 88.08 = 54.50 : x
  2. Step 2: Convert to fraction form
    58.42/88.08 = 54.50/x
  3. Step 3: Cross multiply
    58.42x = 88.08 × 54.50
  4. Step 4: Simplify right side
    58.42x = 4,800.36
  5. Step 5: Solve for x
    x = 4,800.36/58.42
  6. Step 6: Final answer
    x = 82.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.