Home / 52,288.28-78,431.18-12,845.34

Finding the Fourth Proportional to 52,288.28, 78,431.18 and 12,845.34

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Solution

The fourth proportional to 52,288.28, 78,431.18 and 12,845.34 is: 19,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,288.28 : 78,431.18 = 12,845.34 : x
  2. Step 2: Convert to fraction form
    52,288.28/78,431.18 = 12,845.34/x
  3. Step 3: Cross multiply
    52,288.28x = 78,431.18 × 12,845.34
  4. Step 4: Simplify right side
    52,288.28x = 1,007,475,173.70
  5. Step 5: Solve for x
    x = 1,007,475,173.70/52,288.28
  6. Step 6: Final answer
    x = 19,267.71

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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.