Home / 74,939.67-103,415.43-40,947.36

Finding the Fourth Proportional to 74,939.67, 103,415.43 and 40,947.36

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Solution

The fourth proportional to 74,939.67, 103,415.43 and 40,947.36 is: 56,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.67 : 103,415.43 = 40,947.36 : x
  2. Step 2: Convert to fraction form
    74,939.67/103,415.43 = 40,947.36/x
  3. Step 3: Cross multiply
    74,939.67x = 103,415.43 × 40,947.36
  4. Step 4: Simplify right side
    74,939.67x = 4,234,588,841.76
  5. Step 5: Solve for x
    x = 4,234,588,841.76/74,939.67
  6. Step 6: Final answer
    x = 56,506.64

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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.