Home / 72,286.98-99,756.54-40,458.84

Finding the Fourth Proportional to 72,286.98, 99,756.54 and 40,458.84

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Solution

The fourth proportional to 72,286.98, 99,756.54 and 40,458.84 is: 55,833.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,286.98 : 99,756.54 = 40,458.84 : x
  2. Step 2: Convert to fraction form
    72,286.98/99,756.54 = 40,458.84/x
  3. Step 3: Cross multiply
    72,286.98x = 99,756.54 × 40,458.84
  4. Step 4: Simplify right side
    72,286.98x = 4,036,033,890.81
  5. Step 5: Solve for x
    x = 4,036,033,890.81/72,286.98
  6. Step 6: Final answer
    x = 55,833.48

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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.