Home / 74,939.10-103,416.03-40,947.90

Finding the Fourth Proportional to 74,939.10, 103,416.03 and 40,947.90

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Solution

The fourth proportional to 74,939.10, 103,416.03 and 40,947.90 is: 56,508.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.10 : 103,416.03 = 40,947.90 : x
  2. Step 2: Convert to fraction form
    74,939.10/103,416.03 = 40,947.90/x
  3. Step 3: Cross multiply
    74,939.10x = 103,416.03 × 40,947.90
  4. Step 4: Simplify right side
    74,939.10x = 4,234,669,254.84
  5. Step 5: Solve for x
    x = 4,234,669,254.84/74,939.10
  6. Step 6: Final answer
    x = 56,508.14

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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.