Home / 66,409.34-91,612.42-39,543.26

Finding the Fourth Proportional to 66,409.34, 91,612.42 and 39,543.26

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Solution

The fourth proportional to 66,409.34, 91,612.42 and 39,543.26 is: 54,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,409.34 : 91,612.42 = 39,543.26 : x
  2. Step 2: Convert to fraction form
    66,409.34/91,612.42 = 39,543.26/x
  3. Step 3: Cross multiply
    66,409.34x = 91,612.42 × 39,543.26
  4. Step 4: Simplify right side
    66,409.34x = 3,622,653,186.37
  5. Step 5: Solve for x
    x = 3,622,653,186.37/66,409.34
  6. Step 6: Final answer
    x = 54,550.36

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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.