Home / 74,027.88-102,133.62-42,174.36

Finding the Fourth Proportional to 74,027.88, 102,133.62 and 42,174.36

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Solution

The fourth proportional to 74,027.88, 102,133.62 and 42,174.36 is: 58,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,027.88 : 102,133.62 = 42,174.36 : x
  2. Step 2: Convert to fraction form
    74,027.88/102,133.62 = 42,174.36/x
  3. Step 3: Cross multiply
    74,027.88x = 102,133.62 × 42,174.36
  4. Step 4: Simplify right side
    74,027.88x = 4,307,420,057.98
  5. Step 5: Solve for x
    x = 4,307,420,057.98/74,027.88
  6. Step 6: Final answer
    x = 58,186.46

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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.