Home / 53,431.98-80,118.33-21,864.20

Finding the Fourth Proportional to 53,431.98, 80,118.33 and 21,864.20

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Solution

The fourth proportional to 53,431.98, 80,118.33 and 21,864.20 is: 32,784.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.98 : 80,118.33 = 21,864.20 : x
  2. Step 2: Convert to fraction form
    53,431.98/80,118.33 = 21,864.20/x
  3. Step 3: Cross multiply
    53,431.98x = 80,118.33 × 21,864.20
  4. Step 4: Simplify right side
    53,431.98x = 1,751,722,790.19
  5. Step 5: Solve for x
    x = 1,751,722,790.19/53,431.98
  6. Step 6: Final answer
    x = 32,784.16

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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.