Home / 85,038.12-117,373.86-49,249.89

Finding the Fourth Proportional to 85,038.12, 117,373.86 and 49,249.89

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Solution

The fourth proportional to 85,038.12, 117,373.86 and 49,249.89 is: 67,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,038.12 : 117,373.86 = 49,249.89 : x
  2. Step 2: Convert to fraction form
    85,038.12/117,373.86 = 49,249.89/x
  3. Step 3: Cross multiply
    85,038.12x = 117,373.86 × 49,249.89
  4. Step 4: Simplify right side
    85,038.12x = 5,780,649,693.88
  5. Step 5: Solve for x
    x = 5,780,649,693.88/85,038.12
  6. Step 6: Final answer
    x = 67,977.16

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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.