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Finding the Fourth Proportional to 66,877.92, 100,389.60 and 50,285.52

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Solution

The fourth proportional to 66,877.92, 100,389.60 and 50,285.52 is: 75,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,877.92 : 100,389.60 = 50,285.52 : x
  2. Step 2: Convert to fraction form
    66,877.92/100,389.60 = 50,285.52/x
  3. Step 3: Cross multiply
    66,877.92x = 100,389.60 × 50,285.52
  4. Step 4: Simplify right side
    66,877.92x = 5,048,143,238.59
  5. Step 5: Solve for x
    x = 5,048,143,238.59/66,877.92
  6. Step 6: Final answer
    x = 75,482.96

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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.