Home / 65,428.65-98,015.16-31,185.69

Finding the Fourth Proportional to 65,428.65, 98,015.16 and 31,185.69

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Solution

The fourth proportional to 65,428.65, 98,015.16 and 31,185.69 is: 46,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,428.65 : 98,015.16 = 31,185.69 : x
  2. Step 2: Convert to fraction form
    65,428.65/98,015.16 = 31,185.69/x
  3. Step 3: Cross multiply
    65,428.65x = 98,015.16 × 31,185.69
  4. Step 4: Simplify right side
    65,428.65x = 3,056,670,395.06
  5. Step 5: Solve for x
    x = 3,056,670,395.06/65,428.65
  6. Step 6: Final answer
    x = 46,717.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.