Home / 53,921.76-80,882.64-18,853.20

Finding the Fourth Proportional to 53,921.76, 80,882.64 and 18,853.20

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Solution

The fourth proportional to 53,921.76, 80,882.64 and 18,853.20 is: 28,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,921.76 : 80,882.64 = 18,853.20 : x
  2. Step 2: Convert to fraction form
    53,921.76/80,882.64 = 18,853.20/x
  3. Step 3: Cross multiply
    53,921.76x = 80,882.64 × 18,853.20
  4. Step 4: Simplify right side
    53,921.76x = 1,524,896,588.45
  5. Step 5: Solve for x
    x = 1,524,896,588.45/53,921.76
  6. Step 6: Final answer
    x = 28,279.80

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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.