Home / 99,935.74-137,916.66-57,500.74

Finding the Fourth Proportional to 99,935.74, 137,916.66 and 57,500.74

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Solution

The fourth proportional to 99,935.74, 137,916.66 and 57,500.74 is: 79,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,935.74 : 137,916.66 = 57,500.74 : x
  2. Step 2: Convert to fraction form
    99,935.74/137,916.66 = 57,500.74/x
  3. Step 3: Cross multiply
    99,935.74x = 137,916.66 × 57,500.74
  4. Step 4: Simplify right side
    99,935.74x = 7,930,310,008.33
  5. Step 5: Solve for x
    x = 7,930,310,008.33/99,935.74
  6. Step 6: Final answer
    x = 79,354.09

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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.