Home / 52,155.95-78,214.28-18,867.78

Finding the Fourth Proportional to 52,155.95, 78,214.28 and 18,867.78

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Solution

The fourth proportional to 52,155.95, 78,214.28 and 18,867.78 is: 28,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,155.95 : 78,214.28 = 18,867.78 : x
  2. Step 2: Convert to fraction form
    52,155.95/78,214.28 = 18,867.78/x
  3. Step 3: Cross multiply
    52,155.95x = 78,214.28 × 18,867.78
  4. Step 4: Simplify right side
    52,155.95x = 1,475,729,733.56
  5. Step 5: Solve for x
    x = 1,475,729,733.56/52,155.95
  6. Step 6: Final answer
    x = 28,294.56

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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.