Home / 77,693.40-116,289.42-40,201.86

Finding the Fourth Proportional to 77,693.40, 116,289.42 and 40,201.86

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Solution

The fourth proportional to 77,693.40, 116,289.42 and 40,201.86 is: 60,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,693.40 : 116,289.42 = 40,201.86 : x
  2. Step 2: Convert to fraction form
    77,693.40/116,289.42 = 40,201.86/x
  3. Step 3: Cross multiply
    77,693.40x = 116,289.42 × 40,201.86
  4. Step 4: Simplify right side
    77,693.40x = 4,675,050,982.32
  5. Step 5: Solve for x
    x = 4,675,050,982.32/77,693.40
  6. Step 6: Final answer
    x = 60,173.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.