Home / 68,024.79-102,037.41-20,640.28

Finding the Fourth Proportional to 68,024.79, 102,037.41 and 20,640.28

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Solution

The fourth proportional to 68,024.79, 102,037.41 and 20,640.28 is: 30,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,024.79 : 102,037.41 = 20,640.28 : x
  2. Step 2: Convert to fraction form
    68,024.79/102,037.41 = 20,640.28/x
  3. Step 3: Cross multiply
    68,024.79x = 102,037.41 × 20,640.28
  4. Step 4: Simplify right side
    68,024.79x = 2,106,080,712.87
  5. Step 5: Solve for x
    x = 2,106,080,712.87/68,024.79
  6. Step 6: Final answer
    x = 30,960.49

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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.