Home / 42,715.05-64,072.58-40,673.85

Finding the Fourth Proportional to 42,715.05, 64,072.58 and 40,673.85

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Solution

The fourth proportional to 42,715.05, 64,072.58 and 40,673.85 is: 61,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715.05 : 64,072.58 = 40,673.85 : x
  2. Step 2: Convert to fraction form
    42,715.05/64,072.58 = 40,673.85/x
  3. Step 3: Cross multiply
    42,715.05x = 64,072.58 × 40,673.85
  4. Step 4: Simplify right side
    42,715.05x = 2,606,078,304.66
  5. Step 5: Solve for x
    x = 2,606,078,304.66/42,715.05
  6. Step 6: Final answer
    x = 61,010.78

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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.