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Finding the Fourth Proportional to 51,545.60, 77,145.60 and 45,324.80

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Solution

The fourth proportional to 51,545.60, 77,145.60 and 45,324.80 is: 67,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,545.60 : 77,145.60 = 45,324.80 : x
  2. Step 2: Convert to fraction form
    51,545.60/77,145.60 = 45,324.80/x
  3. Step 3: Cross multiply
    51,545.60x = 77,145.60 × 45,324.80
  4. Step 4: Simplify right side
    51,545.60x = 3,496,608,890.88
  5. Step 5: Solve for x
    x = 3,496,608,890.88/51,545.60
  6. Step 6: Final answer
    x = 67,835.25

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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.