Home / 49,979.75-74,990.34-21,885.30

Finding the Fourth Proportional to 49,979.75, 74,990.34 and 21,885.30

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Solution

The fourth proportional to 49,979.75, 74,990.34 and 21,885.30 is: 32,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,979.75 : 74,990.34 = 21,885.30 : x
  2. Step 2: Convert to fraction form
    49,979.75/74,990.34 = 21,885.30/x
  3. Step 3: Cross multiply
    49,979.75x = 74,990.34 × 21,885.30
  4. Step 4: Simplify right side
    49,979.75x = 1,641,186,088.00
  5. Step 5: Solve for x
    x = 1,641,186,088.00/49,979.75
  6. Step 6: Final answer
    x = 32,837.02

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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.