Home / 92,951.40-139,273.20-53,439.60

Finding the Fourth Proportional to 92,951.40, 139,273.20 and 53,439.60

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Solution

The fourth proportional to 92,951.40, 139,273.20 and 53,439.60 is: 80,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,951.40 : 139,273.20 = 53,439.60 : x
  2. Step 2: Convert to fraction form
    92,951.40/139,273.20 = 53,439.60/x
  3. Step 3: Cross multiply
    92,951.40x = 139,273.20 × 53,439.60
  4. Step 4: Simplify right side
    92,951.40x = 7,442,704,098.72
  5. Step 5: Solve for x
    x = 7,442,704,098.72/92,951.40
  6. Step 6: Final answer
    x = 80,070.92

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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.