Home / 74,405.22-102,675.51-42,134.82

Finding the Fourth Proportional to 74,405.22, 102,675.51 and 42,134.82

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Solution

The fourth proportional to 74,405.22, 102,675.51 and 42,134.82 is: 58,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,405.22 : 102,675.51 = 42,134.82 : x
  2. Step 2: Convert to fraction form
    74,405.22/102,675.51 = 42,134.82/x
  3. Step 3: Cross multiply
    74,405.22x = 102,675.51 × 42,134.82
  4. Step 4: Simplify right side
    74,405.22x = 4,326,214,132.26
  5. Step 5: Solve for x
    x = 4,326,214,132.26/74,405.22
  6. Step 6: Final answer
    x = 58,143.96

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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.