Home / 85,064.63-117,389.25-49,256.55

Finding the Fourth Proportional to 85,064.63, 117,389.25 and 49,256.55

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Solution

The fourth proportional to 85,064.63, 117,389.25 and 49,256.55 is: 67,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,064.63 : 117,389.25 = 49,256.55 : x
  2. Step 2: Convert to fraction form
    85,064.63/117,389.25 = 49,256.55/x
  3. Step 3: Cross multiply
    85,064.63x = 117,389.25 × 49,256.55
  4. Step 4: Simplify right side
    85,064.63x = 5,782,189,462.09
  5. Step 5: Solve for x
    x = 5,782,189,462.09/85,064.63
  6. Step 6: Final answer
    x = 67,974.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.