Home / 57,121.14-85,532.64-45,966.90

Finding the Fourth Proportional to 57,121.14, 85,532.64 and 45,966.90

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Solution

The fourth proportional to 57,121.14, 85,532.64 and 45,966.90 is: 68,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.14 : 85,532.64 = 45,966.90 : x
  2. Step 2: Convert to fraction form
    57,121.14/85,532.64 = 45,966.90/x
  3. Step 3: Cross multiply
    57,121.14x = 85,532.64 × 45,966.90
  4. Step 4: Simplify right side
    57,121.14x = 3,931,670,309.62
  5. Step 5: Solve for x
    x = 3,931,670,309.62/57,121.14
  6. Step 6: Final answer
    x = 68,830.39

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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.