Home / 52,104.81-78,157.01-12,662.04

Finding the Fourth Proportional to 52,104.81, 78,157.01 and 12,662.04

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Solution

The fourth proportional to 52,104.81, 78,157.01 and 12,662.04 is: 18,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,104.81 : 78,157.01 = 12,662.04 : x
  2. Step 2: Convert to fraction form
    52,104.81/78,157.01 = 12,662.04/x
  3. Step 3: Cross multiply
    52,104.81x = 78,157.01 × 12,662.04
  4. Step 4: Simplify right side
    52,104.81x = 989,627,218.56
  5. Step 5: Solve for x
    x = 989,627,218.56/52,104.81
  6. Step 6: Final answer
    x = 18,993.01

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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.