Home / 90,811.20-125,307.36-50,516.88

Finding the Fourth Proportional to 90,811.20, 125,307.36 and 50,516.88

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Solution

The fourth proportional to 90,811.20, 125,307.36 and 50,516.88 is: 69,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.20 : 125,307.36 = 50,516.88 : x
  2. Step 2: Convert to fraction form
    90,811.20/125,307.36 = 50,516.88/x
  3. Step 3: Cross multiply
    90,811.20x = 125,307.36 × 50,516.88
  4. Step 4: Simplify right side
    90,811.20x = 6,330,136,868.24
  5. Step 5: Solve for x
    x = 6,330,136,868.24/90,811.20
  6. Step 6: Final answer
    x = 69,706.57

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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.