Home / 53,983.72-81,386.64-50,178.32

Finding the Fourth Proportional to 53,983.72, 81,386.64 and 50,178.32

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Solution

The fourth proportional to 53,983.72, 81,386.64 and 50,178.32 is: 75,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,983.72 : 81,386.64 = 50,178.32 : x
  2. Step 2: Convert to fraction form
    53,983.72/81,386.64 = 50,178.32/x
  3. Step 3: Cross multiply
    53,983.72x = 81,386.64 × 50,178.32
  4. Step 4: Simplify right side
    53,983.72x = 4,083,844,865.64
  5. Step 5: Solve for x
    x = 4,083,844,865.64/53,983.72
  6. Step 6: Final answer
    x = 75,649.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.