Home / 74,949.30-103,428.27-40,956.30

Finding the Fourth Proportional to 74,949.30, 103,428.27 and 40,956.30

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Solution

The fourth proportional to 74,949.30, 103,428.27 and 40,956.30 is: 56,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,949.30 : 103,428.27 = 40,956.30 : x
  2. Step 2: Convert to fraction form
    74,949.30/103,428.27 = 40,956.30/x
  3. Step 3: Cross multiply
    74,949.30x = 103,428.27 × 40,956.30
  4. Step 4: Simplify right side
    74,949.30x = 4,236,039,254.60
  5. Step 5: Solve for x
    x = 4,236,039,254.60/74,949.30
  6. Step 6: Final answer
    x = 56,518.73

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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.