Home / 53,656.64-80,435.68-18,571.76

Finding the Fourth Proportional to 53,656.64, 80,435.68 and 18,571.76

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Solution

The fourth proportional to 53,656.64, 80,435.68 and 18,571.76 is: 27,840.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,656.64 : 80,435.68 = 18,571.76 : x
  2. Step 2: Convert to fraction form
    53,656.64/80,435.68 = 18,571.76/x
  3. Step 3: Cross multiply
    53,656.64x = 80,435.68 × 18,571.76
  4. Step 4: Simplify right side
    53,656.64x = 1,493,831,649.36
  5. Step 5: Solve for x
    x = 1,493,831,649.36/53,656.64
  6. Step 6: Final answer
    x = 27,840.58

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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.