Home / 51,680.79-77,505.78-20,095.76

Finding the Fourth Proportional to 51,680.79, 77,505.78 and 20,095.76

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Solution

The fourth proportional to 51,680.79, 77,505.78 and 20,095.76 is: 30,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,680.79 : 77,505.78 = 20,095.76 : x
  2. Step 2: Convert to fraction form
    51,680.79/77,505.78 = 20,095.76/x
  3. Step 3: Cross multiply
    51,680.79x = 77,505.78 × 20,095.76
  4. Step 4: Simplify right side
    51,680.79x = 1,557,537,165.96
  5. Step 5: Solve for x
    x = 1,557,537,165.96/51,680.79
  6. Step 6: Final answer
    x = 30,137.64

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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.