Home / 85,311.06-117,731.80-47,584.50

Finding the Fourth Proportional to 85,311.06, 117,731.80 and 47,584.50

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Solution

The fourth proportional to 85,311.06, 117,731.80 and 47,584.50 is: 65,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.06 : 117,731.80 = 47,584.50 : x
  2. Step 2: Convert to fraction form
    85,311.06/117,731.80 = 47,584.50/x
  3. Step 3: Cross multiply
    85,311.06x = 117,731.80 × 47,584.50
  4. Step 4: Simplify right side
    85,311.06x = 5,602,208,837.10
  5. Step 5: Solve for x
    x = 5,602,208,837.10/85,311.06
  6. Step 6: Final answer
    x = 65,668.03

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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.