Home / 50,451.16-75,670.44-20,865.28

Finding the Fourth Proportional to 50,451.16, 75,670.44 and 20,865.28

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Solution

The fourth proportional to 50,451.16, 75,670.44 and 20,865.28 is: 31,295.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,451.16 : 75,670.44 = 20,865.28 : x
  2. Step 2: Convert to fraction form
    50,451.16/75,670.44 = 20,865.28/x
  3. Step 3: Cross multiply
    50,451.16x = 75,670.44 × 20,865.28
  4. Step 4: Simplify right side
    50,451.16x = 1,578,884,918.32
  5. Step 5: Solve for x
    x = 1,578,884,918.32/50,451.16
  6. Step 6: Final answer
    x = 31,295.31

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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.