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Finding the Fourth Proportional to 58.53, 88.18 and 53.12

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Solution

The fourth proportional to 58.53, 88.18 and 53.12 is: 80.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.53 : 88.18 = 53.12 : x
  2. Step 2: Convert to fraction form
    58.53/88.18 = 53.12/x
  3. Step 3: Cross multiply
    58.53x = 88.18 × 53.12
  4. Step 4: Simplify right side
    58.53x = 4,683.75
  5. Step 5: Solve for x
    x = 4,683.75/58.53
  6. Step 6: Final answer
    x = 80.03

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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.