Home / 53,421.62-80,102.86-21,853.87

Finding the Fourth Proportional to 53,421.62, 80,102.86 and 21,853.87

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Solution

The fourth proportional to 53,421.62, 80,102.86 and 21,853.87 is: 32,768.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,421.62 : 80,102.86 = 21,853.87 : x
  2. Step 2: Convert to fraction form
    53,421.62/80,102.86 = 21,853.87/x
  3. Step 3: Cross multiply
    53,421.62x = 80,102.86 × 21,853.87
  4. Step 4: Simplify right side
    53,421.62x = 1,750,557,088.55
  5. Step 5: Solve for x
    x = 1,750,557,088.55/53,421.62
  6. Step 6: Final answer
    x = 32,768.70

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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.