Home / 81,935.93-122,904.27-28,627.67

Finding the Fourth Proportional to 81,935.93, 122,904.27 and 28,627.67

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Solution

The fourth proportional to 81,935.93, 122,904.27 and 28,627.67 is: 42,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.93 : 122,904.27 = 28,627.67 : x
  2. Step 2: Convert to fraction form
    81,935.93/122,904.27 = 28,627.67/x
  3. Step 3: Cross multiply
    81,935.93x = 122,904.27 × 28,627.67
  4. Step 4: Simplify right side
    81,935.93x = 3,518,462,883.15
  5. Step 5: Solve for x
    x = 3,518,462,883.15/81,935.93
  6. Step 6: Final answer
    x = 42,941.64

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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.