Home / 79,396.32-119,003.88-31,981.05

Finding the Fourth Proportional to 79,396.32, 119,003.88 and 31,981.05

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Solution

The fourth proportional to 79,396.32, 119,003.88 and 31,981.05 is: 47,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,396.32 : 119,003.88 = 31,981.05 : x
  2. Step 2: Convert to fraction form
    79,396.32/119,003.88 = 31,981.05/x
  3. Step 3: Cross multiply
    79,396.32x = 119,003.88 × 31,981.05
  4. Step 4: Simplify right side
    79,396.32x = 3,805,868,441.45
  5. Step 5: Solve for x
    x = 3,805,868,441.45/79,396.32
  6. Step 6: Final answer
    x = 47,935.07

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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.