Home / 66,409.47-91,634.54-37,332.09

Finding the Fourth Proportional to 66,409.47, 91,634.54 and 37,332.09

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Solution

The fourth proportional to 66,409.47, 91,634.54 and 37,332.09 is: 51,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,409.47 : 91,634.54 = 37,332.09 : x
  2. Step 2: Convert to fraction form
    66,409.47/91,634.54 = 37,332.09/x
  3. Step 3: Cross multiply
    66,409.47x = 91,634.54 × 37,332.09
  4. Step 4: Simplify right side
    66,409.47x = 3,420,908,917.72
  5. Step 5: Solve for x
    x = 3,420,908,917.72/66,409.47
  6. Step 6: Final answer
    x = 51,512.37

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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.