Home / 85,576.47-128,327.22-40,610.64

Finding the Fourth Proportional to 85,576.47, 128,327.22 and 40,610.64

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Solution

The fourth proportional to 85,576.47, 128,327.22 and 40,610.64 is: 60,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,576.47 : 128,327.22 = 40,610.64 : x
  2. Step 2: Convert to fraction form
    85,576.47/128,327.22 = 40,610.64/x
  3. Step 3: Cross multiply
    85,576.47x = 128,327.22 × 40,610.64
  4. Step 4: Simplify right side
    85,576.47x = 5,211,450,533.62
  5. Step 5: Solve for x
    x = 5,211,450,533.62/85,576.47
  6. Step 6: Final answer
    x = 60,898.17

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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.