Home / 68,254.12-102,395.10-28,811.20

Finding the Fourth Proportional to 68,254.12, 102,395.10 and 28,811.20

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Solution

The fourth proportional to 68,254.12, 102,395.10 and 28,811.20 is: 43,222.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,254.12 : 102,395.10 = 28,811.20 : x
  2. Step 2: Convert to fraction form
    68,254.12/102,395.10 = 28,811.20/x
  3. Step 3: Cross multiply
    68,254.12x = 102,395.10 × 28,811.20
  4. Step 4: Simplify right side
    68,254.12x = 2,950,125,705.12
  5. Step 5: Solve for x
    x = 2,950,125,705.12/68,254.12
  6. Step 6: Final answer
    x = 43,222.68

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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.