Home / 79,939.08-119,873.79-42,490.17

Finding the Fourth Proportional to 79,939.08, 119,873.79 and 42,490.17

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Solution

The fourth proportional to 79,939.08, 119,873.79 and 42,490.17 is: 63,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,939.08 : 119,873.79 = 42,490.17 : x
  2. Step 2: Convert to fraction form
    79,939.08/119,873.79 = 42,490.17/x
  3. Step 3: Cross multiply
    79,939.08x = 119,873.79 × 42,490.17
  4. Step 4: Simplify right side
    79,939.08x = 5,093,457,715.64
  5. Step 5: Solve for x
    x = 5,093,457,715.64/79,939.08
  6. Step 6: Final answer
    x = 63,716.74

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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.