Home / 85,895.37-128,855.21-26,737.02

Finding the Fourth Proportional to 85,895.37, 128,855.21 and 26,737.02

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Solution

The fourth proportional to 85,895.37, 128,855.21 and 26,737.02 is: 40,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,895.37 : 128,855.21 = 26,737.02 : x
  2. Step 2: Convert to fraction form
    85,895.37/128,855.21 = 26,737.02/x
  3. Step 3: Cross multiply
    85,895.37x = 128,855.21 × 26,737.02
  4. Step 4: Simplify right side
    85,895.37x = 3,445,204,193.19
  5. Step 5: Solve for x
    x = 3,445,204,193.19/85,895.37
  6. Step 6: Final answer
    x = 40,109.31

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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.