Home / 53,704.42-74,121.80-31,040.28

Finding the Fourth Proportional to 53,704.42, 74,121.80 and 31,040.28

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Solution

The fourth proportional to 53,704.42, 74,121.80 and 31,040.28 is: 42,841.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,704.42 : 74,121.80 = 31,040.28 : x
  2. Step 2: Convert to fraction form
    53,704.42/74,121.80 = 31,040.28/x
  3. Step 3: Cross multiply
    53,704.42x = 74,121.80 × 31,040.28
  4. Step 4: Simplify right side
    53,704.42x = 2,300,761,426.10
  5. Step 5: Solve for x
    x = 2,300,761,426.10/53,704.42
  6. Step 6: Final answer
    x = 42,841.19

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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.