Home / 51,287.73-76,939.69-21,705.72

Finding the Fourth Proportional to 51,287.73, 76,939.69 and 21,705.72

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Solution

The fourth proportional to 51,287.73, 76,939.69 and 21,705.72 is: 32,562.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,287.73 : 76,939.69 = 21,705.72 : x
  2. Step 2: Convert to fraction form
    51,287.73/76,939.69 = 21,705.72/x
  3. Step 3: Cross multiply
    51,287.73x = 76,939.69 × 21,705.72
  4. Step 4: Simplify right side
    51,287.73x = 1,670,031,368.03
  5. Step 5: Solve for x
    x = 1,670,031,368.03/51,287.73
  6. Step 6: Final answer
    x = 32,562.01

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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.