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Finding the Fourth Proportional to 86,130.33, 118,866.18 and 47,896.75

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Solution

The fourth proportional to 86,130.33, 118,866.18 and 47,896.75 is: 66,101.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,130.33 : 118,866.18 = 47,896.75 : x
  2. Step 2: Convert to fraction form
    86,130.33/118,866.18 = 47,896.75/x
  3. Step 3: Cross multiply
    86,130.33x = 118,866.18 × 47,896.75
  4. Step 4: Simplify right side
    86,130.33x = 5,693,303,706.92
  5. Step 5: Solve for x
    x = 5,693,303,706.92/86,130.33
  6. Step 6: Final answer
    x = 66,101.03

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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.