Home / 52,154.28-78,203.16-18,403.38

Finding the Fourth Proportional to 52,154.28, 78,203.16 and 18,403.38

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Solution

The fourth proportional to 52,154.28, 78,203.16 and 18,403.38 is: 27,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,154.28 : 78,203.16 = 18,403.38 : x
  2. Step 2: Convert to fraction form
    52,154.28/78,203.16 = 18,403.38/x
  3. Step 3: Cross multiply
    52,154.28x = 78,203.16 × 18,403.38
  4. Step 4: Simplify right side
    52,154.28x = 1,439,202,470.68
  5. Step 5: Solve for x
    x = 1,439,202,470.68/52,154.28
  6. Step 6: Final answer
    x = 27,595.10

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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.