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Finding the Fourth Proportional to 58.26, 87.04 and 56.12

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Solution

The fourth proportional to 58.26, 87.04 and 56.12 is: 83.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.26 : 87.04 = 56.12 : x
  2. Step 2: Convert to fraction form
    58.26/87.04 = 56.12/x
  3. Step 3: Cross multiply
    58.26x = 87.04 × 56.12
  4. Step 4: Simplify right side
    58.26x = 4,884.68
  5. Step 5: Solve for x
    x = 4,884.68/58.26
  6. Step 6: Final answer
    x = 83.84

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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.