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Finding the Fourth Proportional to 63,443.40, 87,554.64 and 35,149

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Solution

The fourth proportional to 63,443.40, 87,554.64 and 35,149 is: 48,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,443.40 : 87,554.64 = 35,149 : x
  2. Step 2: Convert to fraction form
    63,443.40/87,554.64 = 35,149/x
  3. Step 3: Cross multiply
    63,443.40x = 87,554.64 × 35,149
  4. Step 4: Simplify right side
    63,443.40x = 3,077,458,041.36
  5. Step 5: Solve for x
    x = 3,077,458,041.36/63,443.40
  6. Step 6: Final answer
    x = 48,507.14

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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.