Home / 68,437.20-102,611.40-28,983.60

Finding the Fourth Proportional to 68,437.20, 102,611.40 and 28,983.60

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Solution

The fourth proportional to 68,437.20, 102,611.40 and 28,983.60 is: 43,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437.20 : 102,611.40 = 28,983.60 : x
  2. Step 2: Convert to fraction form
    68,437.20/102,611.40 = 28,983.60/x
  3. Step 3: Cross multiply
    68,437.20x = 102,611.40 × 28,983.60
  4. Step 4: Simplify right side
    68,437.20x = 2,974,047,773.04
  5. Step 5: Solve for x
    x = 2,974,047,773.04/68,437.20
  6. Step 6: Final answer
    x = 43,456.60

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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.