Home / 53,801.31-80,667.33-20,503.19

Finding the Fourth Proportional to 53,801.31, 80,667.33 and 20,503.19

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Solution

The fourth proportional to 53,801.31, 80,667.33 and 20,503.19 is: 30,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,801.31 : 80,667.33 = 20,503.19 : x
  2. Step 2: Convert to fraction form
    53,801.31/80,667.33 = 20,503.19/x
  3. Step 3: Cross multiply
    53,801.31x = 80,667.33 × 20,503.19
  4. Step 4: Simplify right side
    53,801.31x = 1,653,937,718.56
  5. Step 5: Solve for x
    x = 1,653,937,718.56/53,801.31
  6. Step 6: Final answer
    x = 30,741.59

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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.