Home / 84,728.37-126,892.15-73,574.46

Finding the Fourth Proportional to 84,728.37, 126,892.15 and 73,574.46

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Solution

The fourth proportional to 84,728.37, 126,892.15 and 73,574.46 is: 110,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,728.37 : 126,892.15 = 73,574.46 : x
  2. Step 2: Convert to fraction form
    84,728.37/126,892.15 = 73,574.46/x
  3. Step 3: Cross multiply
    84,728.37x = 126,892.15 × 73,574.46
  4. Step 4: Simplify right side
    84,728.37x = 9,336,021,414.49
  5. Step 5: Solve for x
    x = 9,336,021,414.49/84,728.37
  6. Step 6: Final answer
    x = 110,187.67

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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.