Home / 85,172.19-127,778.06-29,012.77

Finding the Fourth Proportional to 85,172.19, 127,778.06 and 29,012.77

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Solution

The fourth proportional to 85,172.19, 127,778.06 and 29,012.77 is: 43,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,172.19 : 127,778.06 = 29,012.77 : x
  2. Step 2: Convert to fraction form
    85,172.19/127,778.06 = 29,012.77/x
  3. Step 3: Cross multiply
    85,172.19x = 127,778.06 × 29,012.77
  4. Step 4: Simplify right side
    85,172.19x = 3,707,195,465.83
  5. Step 5: Solve for x
    x = 3,707,195,465.83/85,172.19
  6. Step 6: Final answer
    x = 43,525.89

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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.