Home / 85,345.44-117,778.32-49,538.40

Finding the Fourth Proportional to 85,345.44, 117,778.32 and 49,538.40

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Solution

The fourth proportional to 85,345.44, 117,778.32 and 49,538.40 is: 68,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,345.44 : 117,778.32 = 49,538.40 : x
  2. Step 2: Convert to fraction form
    85,345.44/117,778.32 = 49,538.40/x
  3. Step 3: Cross multiply
    85,345.44x = 117,778.32 × 49,538.40
  4. Step 4: Simplify right side
    85,345.44x = 5,834,549,527.49
  5. Step 5: Solve for x
    x = 5,834,549,527.49/85,345.44
  6. Step 6: Final answer
    x = 68,363.93

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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.