Home / 86,746.63-130,120.86-30,576.27

Finding the Fourth Proportional to 86,746.63, 130,120.86 and 30,576.27

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Solution

The fourth proportional to 86,746.63, 130,120.86 and 30,576.27 is: 45,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,746.63 : 130,120.86 = 30,576.27 : x
  2. Step 2: Convert to fraction form
    86,746.63/130,120.86 = 30,576.27/x
  3. Step 3: Cross multiply
    86,746.63x = 130,120.86 × 30,576.27
  4. Step 4: Simplify right side
    86,746.63x = 3,978,610,418.68
  5. Step 5: Solve for x
    x = 3,978,610,418.68/86,746.63
  6. Step 6: Final answer
    x = 45,864.73

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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.