Home / 74,067.29-102,212.42-42,235.51

Finding the Fourth Proportional to 74,067.29, 102,212.42 and 42,235.51

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Solution

The fourth proportional to 74,067.29, 102,212.42 and 42,235.51 is: 58,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,067.29 : 102,212.42 = 42,235.51 : x
  2. Step 2: Convert to fraction form
    74,067.29/102,212.42 = 42,235.51/x
  3. Step 3: Cross multiply
    74,067.29x = 102,212.42 × 42,235.51
  4. Step 4: Simplify right side
    74,067.29x = 4,316,993,687.03
  5. Step 5: Solve for x
    x = 4,316,993,687.03/74,067.29
  6. Step 6: Final answer
    x = 58,284.75

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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.