Home / 55,553.21-76,668.21-31,680.89

Finding the Fourth Proportional to 55,553.21, 76,668.21 and 31,680.89

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Solution

The fourth proportional to 55,553.21, 76,668.21 and 31,680.89 is: 43,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,553.21 : 76,668.21 = 31,680.89 : x
  2. Step 2: Convert to fraction form
    55,553.21/76,668.21 = 31,680.89/x
  3. Step 3: Cross multiply
    55,553.21x = 76,668.21 × 31,680.89
  4. Step 4: Simplify right side
    55,553.21x = 2,428,917,127.51
  5. Step 5: Solve for x
    x = 2,428,917,127.51/55,553.21
  6. Step 6: Final answer
    x = 43,722.35

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1.5x scale

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.