Home / 74,828.06-103,258.58-42,558.32

Finding the Fourth Proportional to 74,828.06, 103,258.58 and 42,558.32

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Solution

The fourth proportional to 74,828.06, 103,258.58 and 42,558.32 is: 58,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,828.06 : 103,258.58 = 42,558.32 : x
  2. Step 2: Convert to fraction form
    74,828.06/103,258.58 = 42,558.32/x
  3. Step 3: Cross multiply
    74,828.06x = 103,258.58 × 42,558.32
  4. Step 4: Simplify right side
    74,828.06x = 4,394,510,961.30
  5. Step 5: Solve for x
    x = 4,394,510,961.30/74,828.06
  6. Step 6: Final answer
    x = 58,728.12

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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.