Home / 85,220.23-127,830.34-32,629.71

Finding the Fourth Proportional to 85,220.23, 127,830.34 and 32,629.71

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Solution

The fourth proportional to 85,220.23, 127,830.34 and 32,629.71 is: 48,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.23 : 127,830.34 = 32,629.71 : x
  2. Step 2: Convert to fraction form
    85,220.23/127,830.34 = 32,629.71/x
  3. Step 3: Cross multiply
    85,220.23x = 127,830.34 × 32,629.71
  4. Step 4: Simplify right side
    85,220.23x = 4,171,067,038.14
  5. Step 5: Solve for x
    x = 4,171,067,038.14/85,220.23
  6. Step 6: Final answer
    x = 48,944.57

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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.