Home / 85,441.37-117,907.65-49,631.67

Finding the Fourth Proportional to 85,441.37, 117,907.65 and 49,631.67

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Solution

The fourth proportional to 85,441.37, 117,907.65 and 49,631.67 is: 68,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,441.37 : 117,907.65 = 49,631.67 : x
  2. Step 2: Convert to fraction form
    85,441.37/117,907.65 = 49,631.67/x
  3. Step 3: Cross multiply
    85,441.37x = 117,907.65 × 49,631.67
  4. Step 4: Simplify right side
    85,441.37x = 5,851,953,575.28
  5. Step 5: Solve for x
    x = 5,851,953,575.28/85,441.37
  6. Step 6: Final answer
    x = 68,490.87

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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.