Home / 83,706.21-115,522.20-55,027.35

Finding the Fourth Proportional to 83,706.21, 115,522.20 and 55,027.35

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Solution

The fourth proportional to 83,706.21, 115,522.20 and 55,027.35 is: 75,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,706.21 : 115,522.20 = 55,027.35 : x
  2. Step 2: Convert to fraction form
    83,706.21/115,522.20 = 55,027.35/x
  3. Step 3: Cross multiply
    83,706.21x = 115,522.20 × 55,027.35
  4. Step 4: Simplify right side
    83,706.21x = 6,356,880,532.17
  5. Step 5: Solve for x
    x = 6,356,880,532.17/83,706.21
  6. Step 6: Final answer
    x = 75,942.76

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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.