Home / 77,890.34-116,939.09-52,674.57

Finding the Fourth Proportional to 77,890.34, 116,939.09 and 52,674.57

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Solution

The fourth proportional to 77,890.34, 116,939.09 and 52,674.57 is: 79,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,890.34 : 116,939.09 = 52,674.57 : x
  2. Step 2: Convert to fraction form
    77,890.34/116,939.09 = 52,674.57/x
  3. Step 3: Cross multiply
    77,890.34x = 116,939.09 × 52,674.57
  4. Step 4: Simplify right side
    77,890.34x = 6,159,716,413.63
  5. Step 5: Solve for x
    x = 6,159,716,413.63/77,890.34
  6. Step 6: Final answer
    x = 79,081.90

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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.