Home / 84,040.76-115,973.32-45,799.54

Finding the Fourth Proportional to 84,040.76, 115,973.32 and 45,799.54

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Solution

The fourth proportional to 84,040.76, 115,973.32 and 45,799.54 is: 63,201.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,040.76 : 115,973.32 = 45,799.54 : x
  2. Step 2: Convert to fraction form
    84,040.76/115,973.32 = 45,799.54/x
  3. Step 3: Cross multiply
    84,040.76x = 115,973.32 × 45,799.54
  4. Step 4: Simplify right side
    84,040.76x = 5,311,523,899.41
  5. Step 5: Solve for x
    x = 5,311,523,899.41/84,040.76
  6. Step 6: Final answer
    x = 63,201.76

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Double scale
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1.5x scale

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.