Home / 53,450.35-73,769.30-30,784.98

Finding the Fourth Proportional to 53,450.35, 73,769.30 and 30,784.98

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Solution

The fourth proportional to 53,450.35, 73,769.30 and 30,784.98 is: 42,487.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,450.35 : 73,769.30 = 30,784.98 : x
  2. Step 2: Convert to fraction form
    53,450.35/73,769.30 = 30,784.98/x
  3. Step 3: Cross multiply
    53,450.35x = 73,769.30 × 30,784.98
  4. Step 4: Simplify right side
    53,450.35x = 2,270,986,502.08
  5. Step 5: Solve for x
    x = 2,270,986,502.08/53,450.35
  6. Step 6: Final answer
    x = 42,487.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.