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Finding the Fourth Proportional to 35,871.53, 49,516.04 and 30,815.45

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Solution

The fourth proportional to 35,871.53, 49,516.04 and 30,815.45 is: 42,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,871.53 : 49,516.04 = 30,815.45 : x
  2. Step 2: Convert to fraction form
    35,871.53/49,516.04 = 30,815.45/x
  3. Step 3: Cross multiply
    35,871.53x = 49,516.04 × 30,815.45
  4. Step 4: Simplify right side
    35,871.53x = 1,525,858,900.74
  5. Step 5: Solve for x
    x = 1,525,858,900.74/35,871.53
  6. Step 6: Final answer
    x = 42,536.77

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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.