Home / 74,522.68-102,842-40,531.50

Finding the Fourth Proportional to 74,522.68, 102,842 and 40,531.50

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Solution

The fourth proportional to 74,522.68, 102,842 and 40,531.50 is: 55,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.68 : 102,842 = 40,531.50 : x
  2. Step 2: Convert to fraction form
    74,522.68/102,842 = 40,531.50/x
  3. Step 3: Cross multiply
    74,522.68x = 102,842 × 40,531.50
  4. Step 4: Simplify right side
    74,522.68x = 4,168,340,523
  5. Step 5: Solve for x
    x = 4,168,340,523/74,522.68
  6. Step 6: Final answer
    x = 55,933.85

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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.