Home / 74,662.12-102,997.40-47,783.08

Finding the Fourth Proportional to 74,662.12, 102,997.40 and 47,783.08

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Solution

The fourth proportional to 74,662.12, 102,997.40 and 47,783.08 is: 65,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,662.12 : 102,997.40 = 47,783.08 : x
  2. Step 2: Convert to fraction form
    74,662.12/102,997.40 = 47,783.08/x
  3. Step 3: Cross multiply
    74,662.12x = 102,997.40 × 47,783.08
  4. Step 4: Simplify right side
    74,662.12x = 4,921,533,003.99
  5. Step 5: Solve for x
    x = 4,921,533,003.99/74,662.12
  6. Step 6: Final answer
    x = 65,917.40

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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.