Home / 74,399.13-102,660.03-42,562.08

Finding the Fourth Proportional to 74,399.13, 102,660.03 and 42,562.08

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Solution

The fourth proportional to 74,399.13, 102,660.03 and 42,562.08 is: 58,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,399.13 : 102,660.03 = 42,562.08 : x
  2. Step 2: Convert to fraction form
    74,399.13/102,660.03 = 42,562.08/x
  3. Step 3: Cross multiply
    74,399.13x = 102,660.03 × 42,562.08
  4. Step 4: Simplify right side
    74,399.13x = 4,369,424,409.66
  5. Step 5: Solve for x
    x = 4,369,424,409.66/74,399.13
  6. Step 6: Final answer
    x = 58,729.51

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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.