Home / 85,146.60-117,492.06-49,331.64

Finding the Fourth Proportional to 85,146.60, 117,492.06 and 49,331.64

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Solution

The fourth proportional to 85,146.60, 117,492.06 and 49,331.64 is: 68,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,146.60 : 117,492.06 = 49,331.64 : x
  2. Step 2: Convert to fraction form
    85,146.60/117,492.06 = 49,331.64/x
  3. Step 3: Cross multiply
    85,146.60x = 117,492.06 × 49,331.64
  4. Step 4: Simplify right side
    85,146.60x = 5,796,076,006.78
  5. Step 5: Solve for x
    x = 5,796,076,006.78/85,146.60
  6. Step 6: Final answer
    x = 68,071.73

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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.