Home / 51,321.16-76,995.30-21,740.08

Finding the Fourth Proportional to 51,321.16, 76,995.30 and 21,740.08

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Solution

The fourth proportional to 51,321.16, 76,995.30 and 21,740.08 is: 32,615.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,321.16 : 76,995.30 = 21,740.08 : x
  2. Step 2: Convert to fraction form
    51,321.16/76,995.30 = 21,740.08/x
  3. Step 3: Cross multiply
    51,321.16x = 76,995.30 × 21,740.08
  4. Step 4: Simplify right side
    51,321.16x = 1,673,883,981.62
  5. Step 5: Solve for x
    x = 1,673,883,981.62/51,321.16
  6. Step 6: Final answer
    x = 32,615.86

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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.