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Finding the Fourth Proportional to 58.68, 87.84 and 48.30

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Solution

The fourth proportional to 58.68, 87.84 and 48.30 is: 72.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.68 : 87.84 = 48.30 : x
  2. Step 2: Convert to fraction form
    58.68/87.84 = 48.30/x
  3. Step 3: Cross multiply
    58.68x = 87.84 × 48.30
  4. Step 4: Simplify right side
    58.68x = 4,243.00
  5. Step 5: Solve for x
    x = 4,243.00/58.68
  6. Step 6: Final answer
    x = 72.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.