Home / 66,509.83-91,759.54-51,201.06

Finding the Fourth Proportional to 66,509.83, 91,759.54 and 51,201.06

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Solution

The fourth proportional to 66,509.83, 91,759.54 and 51,201.06 is: 70,638.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,509.83 : 91,759.54 = 51,201.06 : x
  2. Step 2: Convert to fraction form
    66,509.83/91,759.54 = 51,201.06/x
  3. Step 3: Cross multiply
    66,509.83x = 91,759.54 × 51,201.06
  4. Step 4: Simplify right side
    66,509.83x = 4,698,185,760.83
  5. Step 5: Solve for x
    x = 4,698,185,760.83/66,509.83
  6. Step 6: Final answer
    x = 70,638.97

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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.