Home / 86,126.05-118,857.90-47,889.52

Finding the Fourth Proportional to 86,126.05, 118,857.90 and 47,889.52

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Solution

The fourth proportional to 86,126.05, 118,857.90 and 47,889.52 is: 66,089.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,126.05 : 118,857.90 = 47,889.52 : x
  2. Step 2: Convert to fraction form
    86,126.05/118,857.90 = 47,889.52/x
  3. Step 3: Cross multiply
    86,126.05x = 118,857.90 × 47,889.52
  4. Step 4: Simplify right side
    86,126.05x = 5,692,047,661.65
  5. Step 5: Solve for x
    x = 5,692,047,661.65/86,126.05
  6. Step 6: Final answer
    x = 66,089.73

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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.