Home / 77,668.12-116,490.71-49,783.26

Finding the Fourth Proportional to 77,668.12, 116,490.71 and 49,783.26

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Solution

The fourth proportional to 77,668.12, 116,490.71 and 49,783.26 is: 74,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668.12 : 116,490.71 = 49,783.26 : x
  2. Step 2: Convert to fraction form
    77,668.12/116,490.71 = 49,783.26/x
  3. Step 3: Cross multiply
    77,668.12x = 116,490.71 × 49,783.26
  4. Step 4: Simplify right side
    77,668.12x = 5,799,286,929.52
  5. Step 5: Solve for x
    x = 5,799,286,929.52/77,668.12
  6. Step 6: Final answer
    x = 74,667.54

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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.