Home / 74,427.58-102,709.35-40,435.33

Finding the Fourth Proportional to 74,427.58, 102,709.35 and 40,435.33

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Solution

The fourth proportional to 74,427.58, 102,709.35 and 40,435.33 is: 55,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.58 : 102,709.35 = 40,435.33 : x
  2. Step 2: Convert to fraction form
    74,427.58/102,709.35 = 40,435.33/x
  3. Step 3: Cross multiply
    74,427.58x = 102,709.35 × 40,435.33
  4. Step 4: Simplify right side
    74,427.58x = 4,153,086,461.34
  5. Step 5: Solve for x
    x = 4,153,086,461.34/74,427.58
  6. Step 6: Final answer
    x = 55,800.37

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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.