Home / 53,631.35-80,421.11-31,451.93

Finding the Fourth Proportional to 53,631.35, 80,421.11 and 31,451.93

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Solution

The fourth proportional to 53,631.35, 80,421.11 and 31,451.93 is: 47,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,631.35 : 80,421.11 = 31,451.93 : x
  2. Step 2: Convert to fraction form
    53,631.35/80,421.11 = 31,451.93/x
  3. Step 3: Cross multiply
    53,631.35x = 80,421.11 × 31,451.93
  4. Step 4: Simplify right side
    53,631.35x = 2,529,398,964.98
  5. Step 5: Solve for x
    x = 2,529,398,964.98/53,631.35
  6. Step 6: Final answer
    x = 47,162.69

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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.