Home / 53,567.31-80,351.60-20,278.43

Finding the Fourth Proportional to 53,567.31, 80,351.60 and 20,278.43

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Solution

The fourth proportional to 53,567.31, 80,351.60 and 20,278.43 is: 30,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,567.31 : 80,351.60 = 20,278.43 : x
  2. Step 2: Convert to fraction form
    53,567.31/80,351.60 = 20,278.43/x
  3. Step 3: Cross multiply
    53,567.31x = 80,351.60 × 20,278.43
  4. Step 4: Simplify right side
    53,567.31x = 1,629,403,792.84
  5. Step 5: Solve for x
    x = 1,629,403,792.84/53,567.31
  6. Step 6: Final answer
    x = 30,417.88

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1.5x scale

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.