Home / 69,072.51-95,312.35-38,857.21

Finding the Fourth Proportional to 69,072.51, 95,312.35 and 38,857.21

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Solution

The fourth proportional to 69,072.51, 95,312.35 and 38,857.21 is: 53,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,072.51 : 95,312.35 = 38,857.21 : x
  2. Step 2: Convert to fraction form
    69,072.51/95,312.35 = 38,857.21/x
  3. Step 3: Cross multiply
    69,072.51x = 95,312.35 × 38,857.21
  4. Step 4: Simplify right side
    69,072.51x = 3,703,571,999.54
  5. Step 5: Solve for x
    x = 3,703,571,999.54/69,072.51
  6. Step 6: Final answer
    x = 53,618.61

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1.5x scale

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.