Home / 74,141.11-102,322.05-42,314.77

Finding the Fourth Proportional to 74,141.11, 102,322.05 and 42,314.77

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Solution

The fourth proportional to 74,141.11, 102,322.05 and 42,314.77 is: 58,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,141.11 : 102,322.05 = 42,314.77 : x
  2. Step 2: Convert to fraction form
    74,141.11/102,322.05 = 42,314.77/x
  3. Step 3: Cross multiply
    74,141.11x = 102,322.05 × 42,314.77
  4. Step 4: Simplify right side
    74,141.11x = 4,329,734,011.68
  5. Step 5: Solve for x
    x = 4,329,734,011.68/74,141.11
  6. Step 6: Final answer
    x = 58,398.56

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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.