Home / 85,047.18-117,379.50-49,258.98

Finding the Fourth Proportional to 85,047.18, 117,379.50 and 49,258.98

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Solution

The fourth proportional to 85,047.18, 117,379.50 and 49,258.98 is: 67,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,047.18 : 117,379.50 = 49,258.98 : x
  2. Step 2: Convert to fraction form
    85,047.18/117,379.50 = 49,258.98/x
  3. Step 3: Cross multiply
    85,047.18x = 117,379.50 × 49,258.98
  4. Step 4: Simplify right side
    85,047.18x = 5,781,994,442.91
  5. Step 5: Solve for x
    x = 5,781,994,442.91/85,047.18
  6. Step 6: Final answer
    x = 67,985.73

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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.