Home / 42,903.36-64,357.92-11,738.88

Finding the Fourth Proportional to 42,903.36, 64,357.92 and 11,738.88

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Solution

The fourth proportional to 42,903.36, 64,357.92 and 11,738.88 is: 17,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,903.36 : 64,357.92 = 11,738.88 : x
  2. Step 2: Convert to fraction form
    42,903.36/64,357.92 = 11,738.88/x
  3. Step 3: Cross multiply
    42,903.36x = 64,357.92 × 11,738.88
  4. Step 4: Simplify right side
    42,903.36x = 755,489,899.93
  5. Step 5: Solve for x
    x = 755,489,899.93/42,903.36
  6. Step 6: Final answer
    x = 17,609.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.