Home / 74,939.54-103,415.34-40,947.30

Finding the Fourth Proportional to 74,939.54, 103,415.34 and 40,947.30

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Solution

The fourth proportional to 74,939.54, 103,415.34 and 40,947.30 is: 56,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.54 : 103,415.34 = 40,947.30 : x
  2. Step 2: Convert to fraction form
    74,939.54/103,415.34 = 40,947.30/x
  3. Step 3: Cross multiply
    74,939.54x = 103,415.34 × 40,947.30
  4. Step 4: Simplify right side
    74,939.54x = 4,234,578,951.58
  5. Step 5: Solve for x
    x = 4,234,578,951.58/74,939.54
  6. Step 6: Final answer
    x = 56,506.60

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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.