Home / 53,360.12-80,040.24-13,917.20

Finding the Fourth Proportional to 53,360.12, 80,040.24 and 13,917.20

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Solution

The fourth proportional to 53,360.12, 80,040.24 and 13,917.20 is: 20,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,360.12 : 80,040.24 = 13,917.20 : x
  2. Step 2: Convert to fraction form
    53,360.12/80,040.24 = 13,917.20/x
  3. Step 3: Cross multiply
    53,360.12x = 80,040.24 × 13,917.20
  4. Step 4: Simplify right side
    53,360.12x = 1,113,936,028.13
  5. Step 5: Solve for x
    x = 1,113,936,028.13/53,360.12
  6. Step 6: Final answer
    x = 20,875.82

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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.