Home / 53,423.66-80,153.91-20,153.25

Finding the Fourth Proportional to 53,423.66, 80,153.91 and 20,153.25

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Solution

The fourth proportional to 53,423.66, 80,153.91 and 20,153.25 is: 30,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,423.66 : 80,153.91 = 20,153.25 : x
  2. Step 2: Convert to fraction form
    53,423.66/80,153.91 = 20,153.25/x
  3. Step 3: Cross multiply
    53,423.66x = 80,153.91 × 20,153.25
  4. Step 4: Simplify right side
    53,423.66x = 1,615,361,786.71
  5. Step 5: Solve for x
    x = 1,615,361,786.71/53,423.66
  6. Step 6: Final answer
    x = 30,236.83

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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.