Home / 74,290.11-102,495.42-42,436.46

Finding the Fourth Proportional to 74,290.11, 102,495.42 and 42,436.46

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Solution

The fourth proportional to 74,290.11, 102,495.42 and 42,436.46 is: 58,548.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,290.11 : 102,495.42 = 42,436.46 : x
  2. Step 2: Convert to fraction form
    74,290.11/102,495.42 = 42,436.46/x
  3. Step 3: Cross multiply
    74,290.11x = 102,495.42 × 42,436.46
  4. Step 4: Simplify right side
    74,290.11x = 4,349,542,278.54
  5. Step 5: Solve for x
    x = 4,349,542,278.54/74,290.11
  6. Step 6: Final answer
    x = 58,548.07

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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.