Home / 85,072.42-127,614.54-28,889.62

Finding the Fourth Proportional to 85,072.42, 127,614.54 and 28,889.62

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Solution

The fourth proportional to 85,072.42, 127,614.54 and 28,889.62 is: 43,336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.42 : 127,614.54 = 28,889.62 : x
  2. Step 2: Convert to fraction form
    85,072.42/127,614.54 = 28,889.62/x
  3. Step 3: Cross multiply
    85,072.42x = 127,614.54 × 28,889.62
  4. Step 4: Simplify right side
    85,072.42x = 3,686,735,567.07
  5. Step 5: Solve for x
    x = 3,686,735,567.07/85,072.42
  6. Step 6: Final answer
    x = 43,336.44

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1.5x scale

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.