Home / 67,784.40-101,720.52-51,182.64

Finding the Fourth Proportional to 67,784.40, 101,720.52 and 51,182.64

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Solution

The fourth proportional to 67,784.40, 101,720.52 and 51,182.64 is: 76,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,784.40 : 101,720.52 = 51,182.64 : x
  2. Step 2: Convert to fraction form
    67,784.40/101,720.52 = 51,182.64/x
  3. Step 3: Cross multiply
    67,784.40x = 101,720.52 × 51,182.64
  4. Step 4: Simplify right side
    67,784.40x = 5,206,324,755.77
  5. Step 5: Solve for x
    x = 5,206,324,755.77/67,784.40
  6. Step 6: Final answer
    x = 76,807.12

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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.