Home / 85,945.70-128,903.67-23,601.62

Finding the Fourth Proportional to 85,945.70, 128,903.67 and 23,601.62

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Solution

The fourth proportional to 85,945.70, 128,903.67 and 23,601.62 is: 35,398.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,945.70 : 128,903.67 = 23,601.62 : x
  2. Step 2: Convert to fraction form
    85,945.70/128,903.67 = 23,601.62/x
  3. Step 3: Cross multiply
    85,945.70x = 128,903.67 × 23,601.62
  4. Step 4: Simplify right side
    85,945.70x = 3,042,335,435.95
  5. Step 5: Solve for x
    x = 3,042,335,435.95/85,945.70
  6. Step 6: Final answer
    x = 35,398.34

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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.