Home / 72,890.28-100,590.66-70,246.44

Finding the Fourth Proportional to 72,890.28, 100,590.66 and 70,246.44

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Solution

The fourth proportional to 72,890.28, 100,590.66 and 70,246.44 is: 96,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,890.28 : 100,590.66 = 70,246.44 : x
  2. Step 2: Convert to fraction form
    72,890.28/100,590.66 = 70,246.44/x
  3. Step 3: Cross multiply
    72,890.28x = 100,590.66 × 70,246.44
  4. Step 4: Simplify right side
    72,890.28x = 7,066,135,762.25
  5. Step 5: Solve for x
    x = 7,066,135,762.25/72,890.28
  6. Step 6: Final answer
    x = 96,942.09

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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.