Home / 85,429.06-117,885.36-49,613.20

Finding the Fourth Proportional to 85,429.06, 117,885.36 and 49,613.20

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Solution

The fourth proportional to 85,429.06, 117,885.36 and 49,613.20 is: 68,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,429.06 : 117,885.36 = 49,613.20 : x
  2. Step 2: Convert to fraction form
    85,429.06/117,885.36 = 49,613.20/x
  3. Step 3: Cross multiply
    85,429.06x = 117,885.36 × 49,613.20
  4. Step 4: Simplify right side
    85,429.06x = 5,848,669,942.75
  5. Step 5: Solve for x
    x = 5,848,669,942.75/85,429.06
  6. Step 6: Final answer
    x = 68,462.30

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1.5x scale

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.