Home / 74,681.94-111,906.20-43,111.38

Finding the Fourth Proportional to 74,681.94, 111,906.20 and 43,111.38

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Solution

The fourth proportional to 74,681.94, 111,906.20 and 43,111.38 is: 64,599.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.94 : 111,906.20 = 43,111.38 : x
  2. Step 2: Convert to fraction form
    74,681.94/111,906.20 = 43,111.38/x
  3. Step 3: Cross multiply
    74,681.94x = 111,906.20 × 43,111.38
  4. Step 4: Simplify right side
    74,681.94x = 4,824,430,712.56
  5. Step 5: Solve for x
    x = 4,824,430,712.56/74,681.94
  6. Step 6: Final answer
    x = 64,599.70

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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.