Home / 85,108.36-117,442.02-49,286.92

Finding the Fourth Proportional to 85,108.36, 117,442.02 and 49,286.92

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Solution

The fourth proportional to 85,108.36, 117,442.02 and 49,286.92 is: 68,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,108.36 : 117,442.02 = 49,286.92 : x
  2. Step 2: Convert to fraction form
    85,108.36/117,442.02 = 49,286.92/x
  3. Step 3: Cross multiply
    85,108.36x = 117,442.02 × 49,286.92
  4. Step 4: Simplify right side
    85,108.36x = 5,788,355,444.38
  5. Step 5: Solve for x
    x = 5,788,355,444.38/85,108.36
  6. Step 6: Final answer
    x = 68,011.60

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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.