Home / 52,157.28-78,207.66-18,406.38

Finding the Fourth Proportional to 52,157.28, 78,207.66 and 18,406.38

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Solution

The fourth proportional to 52,157.28, 78,207.66 and 18,406.38 is: 27,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,157.28 : 78,207.66 = 18,406.38 : x
  2. Step 2: Convert to fraction form
    52,157.28/78,207.66 = 18,406.38/x
  3. Step 3: Cross multiply
    52,157.28x = 78,207.66 × 18,406.38
  4. Step 4: Simplify right side
    52,157.28x = 1,439,519,908.87
  5. Step 5: Solve for x
    x = 1,439,519,908.87/52,157.28
  6. Step 6: Final answer
    x = 27,599.60

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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.