Home / 53,439.74-80,159.53-21,433.25

Finding the Fourth Proportional to 53,439.74, 80,159.53 and 21,433.25

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Solution

The fourth proportional to 53,439.74, 80,159.53 and 21,433.25 is: 32,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,439.74 : 80,159.53 = 21,433.25 : x
  2. Step 2: Convert to fraction form
    53,439.74/80,159.53 = 21,433.25/x
  3. Step 3: Cross multiply
    53,439.74x = 80,159.53 × 21,433.25
  4. Step 4: Simplify right side
    53,439.74x = 1,718,078,791.99
  5. Step 5: Solve for x
    x = 1,718,078,791.99/53,439.74
  6. Step 6: Final answer
    x = 32,149.84

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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.