Home / 85,786.16-118,392.09-47,555.06

Finding the Fourth Proportional to 85,786.16, 118,392.09 and 47,555.06

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Solution

The fourth proportional to 85,786.16, 118,392.09 and 47,555.06 is: 65,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,786.16 : 118,392.09 = 47,555.06 : x
  2. Step 2: Convert to fraction form
    85,786.16/118,392.09 = 47,555.06/x
  3. Step 3: Cross multiply
    85,786.16x = 118,392.09 × 47,555.06
  4. Step 4: Simplify right side
    85,786.16x = 5,630,142,943.48
  5. Step 5: Solve for x
    x = 5,630,142,943.48/85,786.16
  6. Step 6: Final answer
    x = 65,629.97

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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.