Home / 86,036.26-118,678.54-54,149.80

Finding the Fourth Proportional to 86,036.26, 118,678.54 and 54,149.80

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Solution

The fourth proportional to 86,036.26, 118,678.54 and 54,149.80 is: 74,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,036.26 : 118,678.54 = 54,149.80 : x
  2. Step 2: Convert to fraction form
    86,036.26/118,678.54 = 54,149.80/x
  3. Step 3: Cross multiply
    86,036.26x = 118,678.54 × 54,149.80
  4. Step 4: Simplify right side
    86,036.26x = 6,426,419,205.29
  5. Step 5: Solve for x
    x = 6,426,419,205.29/86,036.26
  6. Step 6: Final answer
    x = 74,694.31

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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.