Home / 74,937.13-112,403.10-18,777.73

Finding the Fourth Proportional to 74,937.13, 112,403.10 and 18,777.73

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Solution

The fourth proportional to 74,937.13, 112,403.10 and 18,777.73 is: 28,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,937.13 : 112,403.10 = 18,777.73 : x
  2. Step 2: Convert to fraction form
    74,937.13/112,403.10 = 18,777.73/x
  3. Step 3: Cross multiply
    74,937.13x = 112,403.10 × 18,777.73
  4. Step 4: Simplify right side
    74,937.13x = 2,110,675,062.96
  5. Step 5: Solve for x
    x = 2,110,675,062.96/74,937.13
  6. Step 6: Final answer
    x = 28,165.94

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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.