Home / 74,155.91-102,352.01-57,991.34

Finding the Fourth Proportional to 74,155.91, 102,352.01 and 57,991.34

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Solution

The fourth proportional to 74,155.91, 102,352.01 and 57,991.34 is: 80,041.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,155.91 : 102,352.01 = 57,991.34 : x
  2. Step 2: Convert to fraction form
    74,155.91/102,352.01 = 57,991.34/x
  3. Step 3: Cross multiply
    74,155.91x = 102,352.01 × 57,991.34
  4. Step 4: Simplify right side
    74,155.91x = 5,935,530,177.52
  5. Step 5: Solve for x
    x = 5,935,530,177.52/74,155.91
  6. Step 6: Final answer
    x = 80,041.23

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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.