Home / 86,708.22-130,099.86-30,588.45

Finding the Fourth Proportional to 86,708.22, 130,099.86 and 30,588.45

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Solution

The fourth proportional to 86,708.22, 130,099.86 and 30,588.45 is: 45,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.22 : 130,099.86 = 30,588.45 : x
  2. Step 2: Convert to fraction form
    86,708.22/130,099.86 = 30,588.45/x
  3. Step 3: Cross multiply
    86,708.22x = 130,099.86 × 30,588.45
  4. Step 4: Simplify right side
    86,708.22x = 3,979,553,062.62
  5. Step 5: Solve for x
    x = 3,979,553,062.62/86,708.22
  6. Step 6: Final answer
    x = 45,895.91

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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.