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Finding the Fourth Proportional to 49,499.60, 74,119.80 and 36,280.40

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Solution

The fourth proportional to 49,499.60, 74,119.80 and 36,280.40 is: 54,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,499.60 : 74,119.80 = 36,280.40 : x
  2. Step 2: Convert to fraction form
    49,499.60/74,119.80 = 36,280.40/x
  3. Step 3: Cross multiply
    49,499.60x = 74,119.80 × 36,280.40
  4. Step 4: Simplify right side
    49,499.60x = 2,689,095,991.92
  5. Step 5: Solve for x
    x = 2,689,095,991.92/49,499.60
  6. Step 6: Final answer
    x = 54,325.61

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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.