Home / 86,842.12-119,804.08-51,015.97

Finding the Fourth Proportional to 86,842.12, 119,804.08 and 51,015.97

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Solution

The fourth proportional to 86,842.12, 119,804.08 and 51,015.97 is: 70,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,842.12 : 119,804.08 = 51,015.97 : x
  2. Step 2: Convert to fraction form
    86,842.12/119,804.08 = 51,015.97/x
  3. Step 3: Cross multiply
    86,842.12x = 119,804.08 × 51,015.97
  4. Step 4: Simplify right side
    86,842.12x = 6,111,921,351.16
  5. Step 5: Solve for x
    x = 6,111,921,351.16/86,842.12
  6. Step 6: Final answer
    x = 70,379.69

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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.