Home / 85,115.69-117,455.15-48,815.27

Finding the Fourth Proportional to 85,115.69, 117,455.15 and 48,815.27

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Solution

The fourth proportional to 85,115.69, 117,455.15 and 48,815.27 is: 67,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,115.69 : 117,455.15 = 48,815.27 : x
  2. Step 2: Convert to fraction form
    85,115.69/117,455.15 = 48,815.27/x
  3. Step 3: Cross multiply
    85,115.69x = 117,455.15 × 48,815.27
  4. Step 4: Simplify right side
    85,115.69x = 5,733,604,272.86
  5. Step 5: Solve for x
    x = 5,733,604,272.86/85,115.69
  6. Step 6: Final answer
    x = 67,362.48

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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.