Home / 53,430.14-73,739.09-30,769.99

Finding the Fourth Proportional to 53,430.14, 73,739.09 and 30,769.99

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Solution

The fourth proportional to 53,430.14, 73,739.09 and 30,769.99 is: 42,465.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.14 : 73,739.09 = 30,769.99 : x
  2. Step 2: Convert to fraction form
    53,430.14/73,739.09 = 30,769.99/x
  3. Step 3: Cross multiply
    53,430.14x = 73,739.09 × 30,769.99
  4. Step 4: Simplify right side
    53,430.14x = 2,268,951,061.91
  5. Step 5: Solve for x
    x = 2,268,951,061.91/53,430.14
  6. Step 6: Final answer
    x = 42,465.75

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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.