Home / 55,172.16-82,773-15,732.72

Finding the Fourth Proportional to 55,172.16, 82,773 and 15,732.72

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Solution

The fourth proportional to 55,172.16, 82,773 and 15,732.72 is: 23,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172.16 : 82,773 = 15,732.72 : x
  2. Step 2: Convert to fraction form
    55,172.16/82,773 = 15,732.72/x
  3. Step 3: Cross multiply
    55,172.16x = 82,773 × 15,732.72
  4. Step 4: Simplify right side
    55,172.16x = 1,302,244,432.56
  5. Step 5: Solve for x
    x = 1,302,244,432.56/55,172.16
  6. Step 6: Final answer
    x = 23,603.29

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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.