Home / 86,072.74-118,779.94-47,311.46

Finding the Fourth Proportional to 86,072.74, 118,779.94 and 47,311.46

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Solution

The fourth proportional to 86,072.74, 118,779.94 and 47,311.46 is: 65,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,072.74 : 118,779.94 = 47,311.46 : x
  2. Step 2: Convert to fraction form
    86,072.74/118,779.94 = 47,311.46/x
  3. Step 3: Cross multiply
    86,072.74x = 118,779.94 × 47,311.46
  4. Step 4: Simplify right side
    86,072.74x = 5,619,652,024.65
  5. Step 5: Solve for x
    x = 5,619,652,024.65/86,072.74
  6. Step 6: Final answer
    x = 65,289.57

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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.