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Finding the Fourth Proportional to 53,339.92, 80,009.58 and 21,749.86

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Solution

The fourth proportional to 53,339.92, 80,009.58 and 21,749.86 is: 32,624.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,339.92 : 80,009.58 = 21,749.86 : x
  2. Step 2: Convert to fraction form
    53,339.92/80,009.58 = 21,749.86/x
  3. Step 3: Cross multiply
    53,339.92x = 80,009.58 × 21,749.86
  4. Step 4: Simplify right side
    53,339.92x = 1,740,197,163.66
  5. Step 5: Solve for x
    x = 1,740,197,163.66/53,339.92
  6. Step 6: Final answer
    x = 32,624.67

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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.