Home / 51,580.16-77,396.89-21,990.05

Finding the Fourth Proportional to 51,580.16, 77,396.89 and 21,990.05

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Solution

The fourth proportional to 51,580.16, 77,396.89 and 21,990.05 is: 32,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,580.16 : 77,396.89 = 21,990.05 : x
  2. Step 2: Convert to fraction form
    51,580.16/77,396.89 = 21,990.05/x
  3. Step 3: Cross multiply
    51,580.16x = 77,396.89 × 21,990.05
  4. Step 4: Simplify right side
    51,580.16x = 1,701,961,480.94
  5. Step 5: Solve for x
    x = 1,701,961,480.94/51,580.16
  6. Step 6: Final answer
    x = 32,996.44

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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.