Home / 53,748.96-80,660.16-18,688.56

Finding the Fourth Proportional to 53,748.96, 80,660.16 and 18,688.56

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Solution

The fourth proportional to 53,748.96, 80,660.16 and 18,688.56 is: 28,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,748.96 : 80,660.16 = 18,688.56 : x
  2. Step 2: Convert to fraction form
    53,748.96/80,660.16 = 18,688.56/x
  3. Step 3: Cross multiply
    53,748.96x = 80,660.16 × 18,688.56
  4. Step 4: Simplify right side
    53,748.96x = 1,507,422,239.77
  5. Step 5: Solve for x
    x = 1,507,422,239.77/53,748.96
  6. Step 6: Final answer
    x = 28,045.61

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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.