Home / 79,690.05-109,946.03-51,414.57

Finding the Fourth Proportional to 79,690.05, 109,946.03 and 51,414.57

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Solution

The fourth proportional to 79,690.05, 109,946.03 and 51,414.57 is: 70,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,690.05 : 109,946.03 = 51,414.57 : x
  2. Step 2: Convert to fraction form
    79,690.05/109,946.03 = 51,414.57/x
  3. Step 3: Cross multiply
    79,690.05x = 109,946.03 × 51,414.57
  4. Step 4: Simplify right side
    79,690.05x = 5,652,827,598.58
  5. Step 5: Solve for x
    x = 5,652,827,598.58/79,690.05
  6. Step 6: Final answer
    x = 70,935.17

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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.