Home / 74,540.26-102,862.59-40,548.79

Finding the Fourth Proportional to 74,540.26, 102,862.59 and 40,548.79

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Solution

The fourth proportional to 74,540.26, 102,862.59 and 40,548.79 is: 55,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.26 : 102,862.59 = 40,548.79 : x
  2. Step 2: Convert to fraction form
    74,540.26/102,862.59 = 40,548.79/x
  3. Step 3: Cross multiply
    74,540.26x = 102,862.59 × 40,548.79
  4. Step 4: Simplify right side
    74,540.26x = 4,170,953,560.77
  5. Step 5: Solve for x
    x = 4,170,953,560.77/74,540.26
  6. Step 6: Final answer
    x = 55,955.72

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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.