Home / 83,908.83-115,735.23-55,219.35

Finding the Fourth Proportional to 83,908.83, 115,735.23 and 55,219.35

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Solution

The fourth proportional to 83,908.83, 115,735.23 and 55,219.35 is: 76,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,908.83 : 115,735.23 = 55,219.35 : x
  2. Step 2: Convert to fraction form
    83,908.83/115,735.23 = 55,219.35/x
  3. Step 3: Cross multiply
    83,908.83x = 115,735.23 × 55,219.35
  4. Step 4: Simplify right side
    83,908.83x = 6,390,824,172.70
  5. Step 5: Solve for x
    x = 6,390,824,172.70/83,908.83
  6. Step 6: Final answer
    x = 76,163.91

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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.