Home / 53,278.16-79,917.40-13,835.60

Finding the Fourth Proportional to 53,278.16, 79,917.40 and 13,835.60

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Solution

The fourth proportional to 53,278.16, 79,917.40 and 13,835.60 is: 20,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,278.16 : 79,917.40 = 13,835.60 : x
  2. Step 2: Convert to fraction form
    53,278.16/79,917.40 = 13,835.60/x
  3. Step 3: Cross multiply
    53,278.16x = 79,917.40 × 13,835.60
  4. Step 4: Simplify right side
    53,278.16x = 1,105,705,179.44
  5. Step 5: Solve for x
    x = 1,105,705,179.44/53,278.16
  6. Step 6: Final answer
    x = 20,753.44

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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.