Home / 51,541.78-71,135.19-28,882.30

Finding the Fourth Proportional to 51,541.78, 71,135.19 and 28,882.30

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Solution

The fourth proportional to 51,541.78, 71,135.19 and 28,882.30 is: 39,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,541.78 : 71,135.19 = 28,882.30 : x
  2. Step 2: Convert to fraction form
    51,541.78/71,135.19 = 28,882.30/x
  3. Step 3: Cross multiply
    51,541.78x = 71,135.19 × 28,882.30
  4. Step 4: Simplify right side
    51,541.78x = 2,054,547,898.14
  5. Step 5: Solve for x
    x = 2,054,547,898.14/51,541.78
  6. Step 6: Final answer
    x = 39,861.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.