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Finding the Fourth Proportional to 50,291.78, 75,437.77 and 18,708.77

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Solution

The fourth proportional to 50,291.78, 75,437.77 and 18,708.77 is: 28,063.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,291.78 : 75,437.77 = 18,708.77 : x
  2. Step 2: Convert to fraction form
    50,291.78/75,437.77 = 18,708.77/x
  3. Step 3: Cross multiply
    50,291.78x = 75,437.77 × 18,708.77
  4. Step 4: Simplify right side
    50,291.78x = 1,411,347,693.43
  5. Step 5: Solve for x
    x = 1,411,347,693.43/50,291.78
  6. Step 6: Final answer
    x = 28,063.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.