Home / 85,516.98-118,033.65-51,976.50

Finding the Fourth Proportional to 85,516.98, 118,033.65 and 51,976.50

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Solution

The fourth proportional to 85,516.98, 118,033.65 and 51,976.50 is: 71,739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,516.98 : 118,033.65 = 51,976.50 : x
  2. Step 2: Convert to fraction form
    85,516.98/118,033.65 = 51,976.50/x
  3. Step 3: Cross multiply
    85,516.98x = 118,033.65 × 51,976.50
  4. Step 4: Simplify right side
    85,516.98x = 6,134,976,009.23
  5. Step 5: Solve for x
    x = 6,134,976,009.23/85,516.98
  6. Step 6: Final answer
    x = 71,739.86

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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.