Home / 85,266.47-127,790.25-40,826.63

Finding the Fourth Proportional to 85,266.47, 127,790.25 and 40,826.63

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Solution

The fourth proportional to 85,266.47, 127,790.25 and 40,826.63 is: 61,187.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,266.47 : 127,790.25 = 40,826.63 : x
  2. Step 2: Convert to fraction form
    85,266.47/127,790.25 = 40,826.63/x
  3. Step 3: Cross multiply
    85,266.47x = 127,790.25 × 40,826.63
  4. Step 4: Simplify right side
    85,266.47x = 5,217,245,254.36
  5. Step 5: Solve for x
    x = 5,217,245,254.36/85,266.47
  6. Step 6: Final answer
    x = 61,187.54

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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.