Home / 53,431.78-73,769.40-34,319.26

Finding the Fourth Proportional to 53,431.78, 73,769.40 and 34,319.26

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Solution

The fourth proportional to 53,431.78, 73,769.40 and 34,319.26 is: 47,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.78 : 73,769.40 = 34,319.26 : x
  2. Step 2: Convert to fraction form
    53,431.78/73,769.40 = 34,319.26/x
  3. Step 3: Cross multiply
    53,431.78x = 73,769.40 × 34,319.26
  4. Step 4: Simplify right side
    53,431.78x = 2,531,711,218.64
  5. Step 5: Solve for x
    x = 2,531,711,218.64/53,431.78
  6. Step 6: Final answer
    x = 47,382.12

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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.