Home / 53,384.28-80,081.88-18,319.38

Finding the Fourth Proportional to 53,384.28, 80,081.88 and 18,319.38

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Solution

The fourth proportional to 53,384.28, 80,081.88 and 18,319.38 is: 27,480.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,384.28 : 80,081.88 = 18,319.38 : x
  2. Step 2: Convert to fraction form
    53,384.28/80,081.88 = 18,319.38/x
  3. Step 3: Cross multiply
    53,384.28x = 80,081.88 × 18,319.38
  4. Step 4: Simplify right side
    53,384.28x = 1,467,050,390.83
  5. Step 5: Solve for x
    x = 1,467,050,390.83/53,384.28
  6. Step 6: Final answer
    x = 27,480.94

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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.