Home / 85,569.30-128,351.55-38,822.10

Finding the Fourth Proportional to 85,569.30, 128,351.55 and 38,822.10

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Solution

The fourth proportional to 85,569.30, 128,351.55 and 38,822.10 is: 58,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,569.30 : 128,351.55 = 38,822.10 : x
  2. Step 2: Convert to fraction form
    85,569.30/128,351.55 = 38,822.10/x
  3. Step 3: Cross multiply
    85,569.30x = 128,351.55 × 38,822.10
  4. Step 4: Simplify right side
    85,569.30x = 4,982,876,709.26
  5. Step 5: Solve for x
    x = 4,982,876,709.26/85,569.30
  6. Step 6: Final answer
    x = 58,232.06

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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.