Home / 85,288.83-127,878.50-35,403.36

Finding the Fourth Proportional to 85,288.83, 127,878.50 and 35,403.36

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Solution

The fourth proportional to 85,288.83, 127,878.50 and 35,403.36 is: 53,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,288.83 : 127,878.50 = 35,403.36 : x
  2. Step 2: Convert to fraction form
    85,288.83/127,878.50 = 35,403.36/x
  3. Step 3: Cross multiply
    85,288.83x = 127,878.50 × 35,403.36
  4. Step 4: Simplify right side
    85,288.83x = 4,527,328,660.27
  5. Step 5: Solve for x
    x = 4,527,328,660.27/85,288.83
  6. Step 6: Final answer
    x = 53,082.32

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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.