Home / 49,538.18-74,321.09-19,976.63

Finding the Fourth Proportional to 49,538.18, 74,321.09 and 19,976.63

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Solution

The fourth proportional to 49,538.18, 74,321.09 and 19,976.63 is: 29,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,538.18 : 74,321.09 = 19,976.63 : x
  2. Step 2: Convert to fraction form
    49,538.18/74,321.09 = 19,976.63/x
  3. Step 3: Cross multiply
    49,538.18x = 74,321.09 × 19,976.63
  4. Step 4: Simplify right side
    49,538.18x = 1,484,684,631.92
  5. Step 5: Solve for x
    x = 1,484,684,631.92/49,538.18
  6. Step 6: Final answer
    x = 29,970.51

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1.5x scale

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.