Home / 53,853.40-80,783.70-18,314.20

Finding the Fourth Proportional to 53,853.40, 80,783.70 and 18,314.20

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Solution

The fourth proportional to 53,853.40, 80,783.70 and 18,314.20 is: 27,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,853.40 : 80,783.70 = 18,314.20 : x
  2. Step 2: Convert to fraction form
    53,853.40/80,783.70 = 18,314.20/x
  3. Step 3: Cross multiply
    53,853.40x = 80,783.70 × 18,314.20
  4. Step 4: Simplify right side
    53,853.40x = 1,479,488,838.54
  5. Step 5: Solve for x
    x = 1,479,488,838.54/53,853.40
  6. Step 6: Final answer
    x = 27,472.52

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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.