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Finding the Fourth Proportional to 58.43, 88.16 and 57.18

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Solution

The fourth proportional to 58.43, 88.16 and 57.18 is: 86.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.43 : 88.16 = 57.18 : x
  2. Step 2: Convert to fraction form
    58.43/88.16 = 57.18/x
  3. Step 3: Cross multiply
    58.43x = 88.16 × 57.18
  4. Step 4: Simplify right side
    58.43x = 5,041.27
  5. Step 5: Solve for x
    x = 5,041.27/58.43
  6. Step 6: Final answer
    x = 86.27

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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.