Home / 67,782.76-101,633.10-30,335.86

Finding the Fourth Proportional to 67,782.76, 101,633.10 and 30,335.86

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Solution

The fourth proportional to 67,782.76, 101,633.10 and 30,335.86 is: 45,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,782.76 : 101,633.10 = 30,335.86 : x
  2. Step 2: Convert to fraction form
    67,782.76/101,633.10 = 30,335.86/x
  3. Step 3: Cross multiply
    67,782.76x = 101,633.10 × 30,335.86
  4. Step 4: Simplify right side
    67,782.76x = 3,083,127,492.97
  5. Step 5: Solve for x
    x = 3,083,127,492.97/67,782.76
  6. Step 6: Final answer
    x = 45,485.42

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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.