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Finding the Fourth Proportional to 73,023.30, 100,772.26 and 39,489.30

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Solution

The fourth proportional to 73,023.30, 100,772.26 and 39,489.30 is: 54,495.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,023.30 : 100,772.26 = 39,489.30 : x
  2. Step 2: Convert to fraction form
    73,023.30/100,772.26 = 39,489.30/x
  3. Step 3: Cross multiply
    73,023.30x = 100,772.26 × 39,489.30
  4. Step 4: Simplify right side
    73,023.30x = 3,979,426,006.82
  5. Step 5: Solve for x
    x = 3,979,426,006.82/73,023.30
  6. Step 6: Final answer
    x = 54,495.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.