Home / 74,185.90-102,383.87-42,359.58

Finding the Fourth Proportional to 74,185.90, 102,383.87 and 42,359.58

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Solution

The fourth proportional to 74,185.90, 102,383.87 and 42,359.58 is: 58,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,185.90 : 102,383.87 = 42,359.58 : x
  2. Step 2: Convert to fraction form
    74,185.90/102,383.87 = 42,359.58/x
  3. Step 3: Cross multiply
    74,185.90x = 102,383.87 × 42,359.58
  4. Step 4: Simplify right side
    74,185.90x = 4,336,937,520.18
  5. Step 5: Solve for x
    x = 4,336,937,520.18/74,185.90
  6. Step 6: Final answer
    x = 58,460.40

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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.