Home / 77,140.56-115,726.32-32,766.96

Finding the Fourth Proportional to 77,140.56, 115,726.32 and 32,766.96

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Solution

The fourth proportional to 77,140.56, 115,726.32 and 32,766.96 is: 49,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.56 : 115,726.32 = 32,766.96 : x
  2. Step 2: Convert to fraction form
    77,140.56/115,726.32 = 32,766.96/x
  3. Step 3: Cross multiply
    77,140.56x = 115,726.32 × 32,766.96
  4. Step 4: Simplify right side
    77,140.56x = 3,791,999,698.39
  5. Step 5: Solve for x
    x = 3,791,999,698.39/77,140.56
  6. Step 6: Final answer
    x = 49,157.02

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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.