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Finding the Fourth Proportional to 73.16, 109.58 and 59.57

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Solution

The fourth proportional to 73.16, 109.58 and 59.57 is: 89.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.16 : 109.58 = 59.57 : x
  2. Step 2: Convert to fraction form
    73.16/109.58 = 59.57/x
  3. Step 3: Cross multiply
    73.16x = 109.58 × 59.57
  4. Step 4: Simplify right side
    73.16x = 6,526.83
  5. Step 5: Solve for x
    x = 6,526.83/73.16
  6. Step 6: Final answer
    x = 89.22

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Why These Related Problems?

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