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Finding the Fourth Proportional to 68,957.53, 103,442.28 and 19,037.65

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Solution

The fourth proportional to 68,957.53, 103,442.28 and 19,037.65 is: 28,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,957.53 : 103,442.28 = 19,037.65 : x
  2. Step 2: Convert to fraction form
    68,957.53/103,442.28 = 19,037.65/x
  3. Step 3: Cross multiply
    68,957.53x = 103,442.28 × 19,037.65
  4. Step 4: Simplify right side
    68,957.53x = 1,969,297,921.84
  5. Step 5: Solve for x
    x = 1,969,297,921.84/68,957.53
  6. Step 6: Final answer
    x = 28,558.13

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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.