Home / 86,836.74-119,835.09-49,118.28

Finding the Fourth Proportional to 86,836.74, 119,835.09 and 49,118.28

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Solution

The fourth proportional to 86,836.74, 119,835.09 and 49,118.28 is: 67,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,836.74 : 119,835.09 = 49,118.28 : x
  2. Step 2: Convert to fraction form
    86,836.74/119,835.09 = 49,118.28/x
  3. Step 3: Cross multiply
    86,836.74x = 119,835.09 × 49,118.28
  4. Step 4: Simplify right side
    86,836.74x = 5,886,093,504.45
  5. Step 5: Solve for x
    x = 5,886,093,504.45/86,836.74
  6. Step 6: Final answer
    x = 67,783.45

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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.