Home / 53,378.90-80,012.70-20,076.02

Finding the Fourth Proportional to 53,378.90, 80,012.70 and 20,076.02

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Solution

The fourth proportional to 53,378.90, 80,012.70 and 20,076.02 is: 30,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,378.90 : 80,012.70 = 20,076.02 : x
  2. Step 2: Convert to fraction form
    53,378.90/80,012.70 = 20,076.02/x
  3. Step 3: Cross multiply
    53,378.90x = 80,012.70 × 20,076.02
  4. Step 4: Simplify right side
    53,378.90x = 1,606,336,565.45
  5. Step 5: Solve for x
    x = 1,606,336,565.45/53,378.90
  6. Step 6: Final answer
    x = 30,093.10

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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.