Home / 74,247.16-111,348.78-21,640.18

Finding the Fourth Proportional to 74,247.16, 111,348.78 and 21,640.18

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Solution

The fourth proportional to 74,247.16, 111,348.78 and 21,640.18 is: 32,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,247.16 : 111,348.78 = 21,640.18 : x
  2. Step 2: Convert to fraction form
    74,247.16/111,348.78 = 21,640.18/x
  3. Step 3: Cross multiply
    74,247.16x = 111,348.78 × 21,640.18
  4. Step 4: Simplify right side
    74,247.16x = 2,409,607,641.98
  5. Step 5: Solve for x
    x = 2,409,607,641.98/74,247.16
  6. Step 6: Final answer
    x = 32,453.87

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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.