Home / 45,121.16-67,680.92-15,538.34

Finding the Fourth Proportional to 45,121.16, 67,680.92 and 15,538.34

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Solution

The fourth proportional to 45,121.16, 67,680.92 and 15,538.34 is: 23,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,121.16 : 67,680.92 = 15,538.34 : x
  2. Step 2: Convert to fraction form
    45,121.16/67,680.92 = 15,538.34/x
  3. Step 3: Cross multiply
    45,121.16x = 67,680.92 × 15,538.34
  4. Step 4: Simplify right side
    45,121.16x = 1,051,648,730.38
  5. Step 5: Solve for x
    x = 1,051,648,730.38/45,121.16
  6. Step 6: Final answer
    x = 23,307.22

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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.