Home / 76,939.04-115,429.80-32,542.40

Finding the Fourth Proportional to 76,939.04, 115,429.80 and 32,542.40

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Solution

The fourth proportional to 76,939.04, 115,429.80 and 32,542.40 is: 48,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.04 : 115,429.80 = 32,542.40 : x
  2. Step 2: Convert to fraction form
    76,939.04/115,429.80 = 32,542.40/x
  3. Step 3: Cross multiply
    76,939.04x = 115,429.80 × 32,542.40
  4. Step 4: Simplify right side
    76,939.04x = 3,756,362,723.52
  5. Step 5: Solve for x
    x = 3,756,362,723.52/76,939.04
  6. Step 6: Final answer
    x = 48,822.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.