Home / 84,637.78-116,769.20-50,647.21

Finding the Fourth Proportional to 84,637.78, 116,769.20 and 50,647.21

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Solution

The fourth proportional to 84,637.78, 116,769.20 and 50,647.21 is: 69,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,637.78 : 116,769.20 = 50,647.21 : x
  2. Step 2: Convert to fraction form
    84,637.78/116,769.20 = 50,647.21/x
  3. Step 3: Cross multiply
    84,637.78x = 116,769.20 × 50,647.21
  4. Step 4: Simplify right side
    84,637.78x = 5,914,033,648.77
  5. Step 5: Solve for x
    x = 5,914,033,648.77/84,637.78
  6. Step 6: Final answer
    x = 69,874.63

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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.