Home / 74,605.75-102,955.94-42,785.17

Finding the Fourth Proportional to 74,605.75, 102,955.94 and 42,785.17

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Solution

The fourth proportional to 74,605.75, 102,955.94 and 42,785.17 is: 59,043.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,605.75 : 102,955.94 = 42,785.17 : x
  2. Step 2: Convert to fraction form
    74,605.75/102,955.94 = 42,785.17/x
  3. Step 3: Cross multiply
    74,605.75x = 102,955.94 × 42,785.17
  4. Step 4: Simplify right side
    74,605.75x = 4,404,987,395.41
  5. Step 5: Solve for x
    x = 4,404,987,395.41/74,605.75
  6. Step 6: Final answer
    x = 59,043.54

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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.