Home / 49,430.52-74,145.92-11,990.43

Finding the Fourth Proportional to 49,430.52, 74,145.92 and 11,990.43

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Solution

The fourth proportional to 49,430.52, 74,145.92 and 11,990.43 is: 17,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,430.52 : 74,145.92 = 11,990.43 : x
  2. Step 2: Convert to fraction form
    49,430.52/74,145.92 = 11,990.43/x
  3. Step 3: Cross multiply
    49,430.52x = 74,145.92 × 11,990.43
  4. Step 4: Simplify right side
    49,430.52x = 889,041,403.59
  5. Step 5: Solve for x
    x = 889,041,403.59/49,430.52
  6. Step 6: Final answer
    x = 17,985.68

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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.