Home / 81,817.39-112,916.55-50,007.48

Finding the Fourth Proportional to 81,817.39, 112,916.55 and 50,007.48

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Solution

The fourth proportional to 81,817.39, 112,916.55 and 50,007.48 is: 69,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,817.39 : 112,916.55 = 50,007.48 : x
  2. Step 2: Convert to fraction form
    81,817.39/112,916.55 = 50,007.48/x
  3. Step 3: Cross multiply
    81,817.39x = 112,916.55 × 50,007.48
  4. Step 4: Simplify right side
    81,817.39x = 5,646,672,115.79
  5. Step 5: Solve for x
    x = 5,646,672,115.79/81,817.39
  6. Step 6: Final answer
    x = 69,015.55

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1.5x scale

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.