Home / 52,143.87-78,215.78-18,856.16

Finding the Fourth Proportional to 52,143.87, 78,215.78 and 18,856.16

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Solution

The fourth proportional to 52,143.87, 78,215.78 and 18,856.16 is: 28,284.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,143.87 : 78,215.78 = 18,856.16 : x
  2. Step 2: Convert to fraction form
    52,143.87/78,215.78 = 18,856.16/x
  3. Step 3: Cross multiply
    52,143.87x = 78,215.78 × 18,856.16
  4. Step 4: Simplify right side
    52,143.87x = 1,474,849,262.20
  5. Step 5: Solve for x
    x = 1,474,849,262.20/52,143.87
  6. Step 6: Final answer
    x = 28,284.23

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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.