Home / 53,129.11-73,326.15-40,361.28

Finding the Fourth Proportional to 53,129.11, 73,326.15 and 40,361.28

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Solution

The fourth proportional to 53,129.11, 73,326.15 and 40,361.28 is: 55,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.11 : 73,326.15 = 40,361.28 : x
  2. Step 2: Convert to fraction form
    53,129.11/73,326.15 = 40,361.28/x
  3. Step 3: Cross multiply
    53,129.11x = 73,326.15 × 40,361.28
  4. Step 4: Simplify right side
    53,129.11x = 2,959,537,069.67
  5. Step 5: Solve for x
    x = 2,959,537,069.67/53,129.11
  6. Step 6: Final answer
    x = 55,704.62

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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.