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Finding the Fourth Proportional to 58.51, 87.25 and 51.63

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Solution

The fourth proportional to 58.51, 87.25 and 51.63 is: 76.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.51 : 87.25 = 51.63 : x
  2. Step 2: Convert to fraction form
    58.51/87.25 = 51.63/x
  3. Step 3: Cross multiply
    58.51x = 87.25 × 51.63
  4. Step 4: Simplify right side
    58.51x = 4,504.72
  5. Step 5: Solve for x
    x = 4,504.72/58.51
  6. Step 6: Final answer
    x = 76.99

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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.