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Finding the Fourth Proportional to 45,495.40, 68,243.10 and 15,903.40

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Solution

The fourth proportional to 45,495.40, 68,243.10 and 15,903.40 is: 23,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,495.40 : 68,243.10 = 15,903.40 : x
  2. Step 2: Convert to fraction form
    45,495.40/68,243.10 = 15,903.40/x
  3. Step 3: Cross multiply
    45,495.40x = 68,243.10 × 15,903.40
  4. Step 4: Simplify right side
    45,495.40x = 1,085,297,316.54
  5. Step 5: Solve for x
    x = 1,085,297,316.54/45,495.40
  6. Step 6: Final answer
    x = 23,855.10

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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.