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Finding the Fourth Proportional to 49,140.70, 73,601.70 and 40,392.70

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Solution

The fourth proportional to 49,140.70, 73,601.70 and 40,392.70 is: 60,499.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,140.70 : 73,601.70 = 40,392.70 : x
  2. Step 2: Convert to fraction form
    49,140.70/73,601.70 = 40,392.70/x
  3. Step 3: Cross multiply
    49,140.70x = 73,601.70 × 40,392.70
  4. Step 4: Simplify right side
    49,140.70x = 2,972,971,387.59
  5. Step 5: Solve for x
    x = 2,972,971,387.59/49,140.70
  6. Step 6: Final answer
    x = 60,499.17

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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.