Home / 66,290.45-91,485.71-37,615.03

Finding the Fourth Proportional to 66,290.45, 91,485.71 and 37,615.03

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Solution

The fourth proportional to 66,290.45, 91,485.71 and 37,615.03 is: 51,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.45 : 91,485.71 = 37,615.03 : x
  2. Step 2: Convert to fraction form
    66,290.45/91,485.71 = 37,615.03/x
  3. Step 3: Cross multiply
    66,290.45x = 91,485.71 × 37,615.03
  4. Step 4: Simplify right side
    66,290.45x = 3,441,238,110.56
  5. Step 5: Solve for x
    x = 3,441,238,110.56/66,290.45
  6. Step 6: Final answer
    x = 51,911.52

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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.