Home / 53,739.60-80,631.24-18,703.84

Finding the Fourth Proportional to 53,739.60, 80,631.24 and 18,703.84

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Solution

The fourth proportional to 53,739.60, 80,631.24 and 18,703.84 is: 28,063.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,739.60 : 80,631.24 = 18,703.84 : x
  2. Step 2: Convert to fraction form
    53,739.60/80,631.24 = 18,703.84/x
  3. Step 3: Cross multiply
    53,739.60x = 80,631.24 × 18,703.84
  4. Step 4: Simplify right side
    53,739.60x = 1,508,113,811.96
  5. Step 5: Solve for x
    x = 1,508,113,811.96/53,739.60
  6. Step 6: Final answer
    x = 28,063.36

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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.