Home / 49,916.16-74,885.40-18,751.68

Finding the Fourth Proportional to 49,916.16, 74,885.40 and 18,751.68

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Solution

The fourth proportional to 49,916.16, 74,885.40 and 18,751.68 is: 28,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,916.16 : 74,885.40 = 18,751.68 : x
  2. Step 2: Convert to fraction form
    49,916.16/74,885.40 = 18,751.68/x
  3. Step 3: Cross multiply
    49,916.16x = 74,885.40 × 18,751.68
  4. Step 4: Simplify right side
    49,916.16x = 1,404,227,057.47
  5. Step 5: Solve for x
    x = 1,404,227,057.47/49,916.16
  6. Step 6: Final answer
    x = 28,131.71

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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.