Home / 74,090.12-102,243.32-42,259.56

Finding the Fourth Proportional to 74,090.12, 102,243.32 and 42,259.56

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Solution

The fourth proportional to 74,090.12, 102,243.32 and 42,259.56 is: 58,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,090.12 : 102,243.32 = 42,259.56 : x
  2. Step 2: Convert to fraction form
    74,090.12/102,243.32 = 42,259.56/x
  3. Step 3: Cross multiply
    74,090.12x = 102,243.32 × 42,259.56
  4. Step 4: Simplify right side
    74,090.12x = 4,320,757,716.14
  5. Step 5: Solve for x
    x = 4,320,757,716.14/74,090.12
  6. Step 6: Final answer
    x = 58,317.60

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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.