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Finding the Fourth Proportional to 72,029.00, 99,410.03 and 40,199.95

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Solution

The fourth proportional to 72,029.00, 99,410.03 and 40,199.95 is: 55,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029.00 : 99,410.03 = 40,199.95 : x
  2. Step 2: Convert to fraction form
    72,029.00/99,410.03 = 40,199.95/x
  3. Step 3: Cross multiply
    72,029.00x = 99,410.03 × 40,199.95
  4. Step 4: Simplify right side
    72,029.00x = 3,996,277,976.45
  5. Step 5: Solve for x
    x = 3,996,277,976.45/72,029.00
  6. Step 6: Final answer
    x = 55,481.52

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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.