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Finding the Fourth Proportional to 53,257.92, 79,873.18 and 15,809.12

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Solution

The fourth proportional to 53,257.92, 79,873.18 and 15,809.12 is: 23,709.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,257.92 : 79,873.18 = 15,809.12 : x
  2. Step 2: Convert to fraction form
    53,257.92/79,873.18 = 15,809.12/x
  3. Step 3: Cross multiply
    53,257.92x = 79,873.18 × 15,809.12
  4. Step 4: Simplify right side
    53,257.92x = 1,262,724,687.40
  5. Step 5: Solve for x
    x = 1,262,724,687.40/53,257.92
  6. Step 6: Final answer
    x = 23,709.61

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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.