Home / 86,988.14-120,054.74-51,181.46

Finding the Fourth Proportional to 86,988.14, 120,054.74 and 51,181.46

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Solution

The fourth proportional to 86,988.14, 120,054.74 and 51,181.46 is: 70,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,988.14 : 120,054.74 = 51,181.46 : x
  2. Step 2: Convert to fraction form
    86,988.14/120,054.74 = 51,181.46/x
  3. Step 3: Cross multiply
    86,988.14x = 120,054.74 × 51,181.46
  4. Step 4: Simplify right side
    86,988.14x = 6,144,576,016.94
  5. Step 5: Solve for x
    x = 6,144,576,016.94/86,988.14
  6. Step 6: Final answer
    x = 70,636.94

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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.