Home / 68,520.02-102,780.02-18,600.12

Finding the Fourth Proportional to 68,520.02, 102,780.02 and 18,600.12

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Solution

The fourth proportional to 68,520.02, 102,780.02 and 18,600.12 is: 27,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.02 : 102,780.02 = 18,600.12 : x
  2. Step 2: Convert to fraction form
    68,520.02/102,780.02 = 18,600.12/x
  3. Step 3: Cross multiply
    68,520.02x = 102,780.02 × 18,600.12
  4. Step 4: Simplify right side
    68,520.02x = 1,911,720,705.60
  5. Step 5: Solve for x
    x = 1,911,720,705.60/68,520.02
  6. Step 6: Final answer
    x = 27,900.18

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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.