Home / 85,951.04-128,706.24-50,915.84

Finding the Fourth Proportional to 85,951.04, 128,706.24 and 50,915.84

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Solution

The fourth proportional to 85,951.04, 128,706.24 and 50,915.84 is: 76,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,951.04 : 128,706.24 = 50,915.84 : x
  2. Step 2: Convert to fraction form
    85,951.04/128,706.24 = 50,915.84/x
  3. Step 3: Cross multiply
    85,951.04x = 128,706.24 × 50,915.84
  4. Step 4: Simplify right side
    85,951.04x = 6,553,186,322.84
  5. Step 5: Solve for x
    x = 6,553,186,322.84/85,951.04
  6. Step 6: Final answer
    x = 76,243.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.