Home / 72,460.19-99,993.79-40,628.99

Finding the Fourth Proportional to 72,460.19, 99,993.79 and 40,628.99

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Solution

The fourth proportional to 72,460.19, 99,993.79 and 40,628.99 is: 56,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,460.19 : 99,993.79 = 40,628.99 : x
  2. Step 2: Convert to fraction form
    72,460.19/99,993.79 = 40,628.99/x
  3. Step 3: Cross multiply
    72,460.19x = 99,993.79 × 40,628.99
  4. Step 4: Simplify right side
    72,460.19x = 4,062,646,693.97
  5. Step 5: Solve for x
    x = 4,062,646,693.97/72,460.19
  6. Step 6: Final answer
    x = 56,067.29

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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.