Home / 90,706.28-125,172.24-50,419.04

Finding the Fourth Proportional to 90,706.28, 125,172.24 and 50,419.04

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Solution

The fourth proportional to 90,706.28, 125,172.24 and 50,419.04 is: 69,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,706.28 : 125,172.24 = 50,419.04 : x
  2. Step 2: Convert to fraction form
    90,706.28/125,172.24 = 50,419.04/x
  3. Step 3: Cross multiply
    90,706.28x = 125,172.24 × 50,419.04
  4. Step 4: Simplify right side
    90,706.28x = 6,311,064,175.45
  5. Step 5: Solve for x
    x = 6,311,064,175.45/90,706.28
  6. Step 6: Final answer
    x = 69,576.93

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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.