Home / 53,431.90-80,118.26-21,864.12

Finding the Fourth Proportional to 53,431.90, 80,118.26 and 21,864.12

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Solution

The fourth proportional to 53,431.90, 80,118.26 and 21,864.12 is: 32,784.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.90 : 80,118.26 = 21,864.12 : x
  2. Step 2: Convert to fraction form
    53,431.90/80,118.26 = 21,864.12/x
  3. Step 3: Cross multiply
    53,431.90x = 80,118.26 × 21,864.12
  4. Step 4: Simplify right side
    53,431.90x = 1,751,715,250.83
  5. Step 5: Solve for x
    x = 1,751,715,250.83/53,431.90
  6. Step 6: Final answer
    x = 32,784.07

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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.