Home / 53,721.64-80,506.05-39,570.38

Finding the Fourth Proportional to 53,721.64, 80,506.05 and 39,570.38

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Solution

The fourth proportional to 53,721.64, 80,506.05 and 39,570.38 is: 59,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,721.64 : 80,506.05 = 39,570.38 : x
  2. Step 2: Convert to fraction form
    53,721.64/80,506.05 = 39,570.38/x
  3. Step 3: Cross multiply
    53,721.64x = 80,506.05 × 39,570.38
  4. Step 4: Simplify right side
    53,721.64x = 3,185,654,990.80
  5. Step 5: Solve for x
    x = 3,185,654,990.80/53,721.64
  6. Step 6: Final answer
    x = 59,299.29

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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.