Home / 65,623.80-98,432.26-18,874.84

Finding the Fourth Proportional to 65,623.80, 98,432.26 and 18,874.84

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Solution

The fourth proportional to 65,623.80, 98,432.26 and 18,874.84 is: 28,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,623.80 : 98,432.26 = 18,874.84 : x
  2. Step 2: Convert to fraction form
    65,623.80/98,432.26 = 18,874.84/x
  3. Step 3: Cross multiply
    65,623.80x = 98,432.26 × 18,874.84
  4. Step 4: Simplify right side
    65,623.80x = 1,857,893,158.34
  5. Step 5: Solve for x
    x = 1,857,893,158.34/65,623.80
  6. Step 6: Final answer
    x = 28,311.27

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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.