Home / 85,553.40-128,348.42-25,586.52

Finding the Fourth Proportional to 85,553.40, 128,348.42 and 25,586.52

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Solution

The fourth proportional to 85,553.40, 128,348.42 and 25,586.52 is: 38,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.40 : 128,348.42 = 25,586.52 : x
  2. Step 2: Convert to fraction form
    85,553.40/128,348.42 = 25,586.52/x
  3. Step 3: Cross multiply
    85,553.40x = 128,348.42 × 25,586.52
  4. Step 4: Simplify right side
    85,553.40x = 3,283,989,415.30
  5. Step 5: Solve for x
    x = 3,283,989,415.30/85,553.40
  6. Step 6: Final answer
    x = 38,385.26

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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.