Home / 51,938.79-77,861.57-18,651.15

Finding the Fourth Proportional to 51,938.79, 77,861.57 and 18,651.15

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Solution

The fourth proportional to 51,938.79, 77,861.57 and 18,651.15 is: 27,959.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,938.79 : 77,861.57 = 18,651.15 : x
  2. Step 2: Convert to fraction form
    51,938.79/77,861.57 = 18,651.15/x
  3. Step 3: Cross multiply
    51,938.79x = 77,861.57 × 18,651.15
  4. Step 4: Simplify right side
    51,938.79x = 1,452,207,728.05
  5. Step 5: Solve for x
    x = 1,452,207,728.05/51,938.79
  6. Step 6: Final answer
    x = 27,959.98

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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.