Home / 86,708.06-130,072.51-30,536.57

Finding the Fourth Proportional to 86,708.06, 130,072.51 and 30,536.57

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Solution

The fourth proportional to 86,708.06, 130,072.51 and 30,536.57 is: 45,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.06 : 130,072.51 = 30,536.57 : x
  2. Step 2: Convert to fraction form
    86,708.06/130,072.51 = 30,536.57/x
  3. Step 3: Cross multiply
    86,708.06x = 130,072.51 × 30,536.57
  4. Step 4: Simplify right side
    86,708.06x = 3,971,967,656.33
  5. Step 5: Solve for x
    x = 3,971,967,656.33/86,708.06
  6. Step 6: Final answer
    x = 45,808.52

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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.