Home / 71,956.18-99,297.30-40,130.44

Finding the Fourth Proportional to 71,956.18, 99,297.30 and 40,130.44

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Solution

The fourth proportional to 71,956.18, 99,297.30 and 40,130.44 is: 55,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,956.18 : 99,297.30 = 40,130.44 : x
  2. Step 2: Convert to fraction form
    71,956.18/99,297.30 = 40,130.44/x
  3. Step 3: Cross multiply
    71,956.18x = 99,297.30 × 40,130.44
  4. Step 4: Simplify right side
    71,956.18x = 3,984,844,339.81
  5. Step 5: Solve for x
    x = 3,984,844,339.81/71,956.18
  6. Step 6: Final answer
    x = 55,378.76

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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.