Home / 74,508.95-102,814.57-42,679.19

Finding the Fourth Proportional to 74,508.95, 102,814.57 and 42,679.19

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Solution

The fourth proportional to 74,508.95, 102,814.57 and 42,679.19 is: 58,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.95 : 102,814.57 = 42,679.19 : x
  2. Step 2: Convert to fraction form
    74,508.95/102,814.57 = 42,679.19/x
  3. Step 3: Cross multiply
    74,508.95x = 102,814.57 × 42,679.19
  4. Step 4: Simplify right side
    74,508.95x = 4,388,042,567.80
  5. Step 5: Solve for x
    x = 4,388,042,567.80/74,508.95
  6. Step 6: Final answer
    x = 58,892.83

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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.