Home / 53,920.80-80,708.40-28,899.36

Finding the Fourth Proportional to 53,920.80, 80,708.40 and 28,899.36

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Solution

The fourth proportional to 53,920.80, 80,708.40 and 28,899.36 is: 43,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,920.80 : 80,708.40 = 28,899.36 : x
  2. Step 2: Convert to fraction form
    53,920.80/80,708.40 = 28,899.36/x
  3. Step 3: Cross multiply
    53,920.80x = 80,708.40 × 28,899.36
  4. Step 4: Simplify right side
    53,920.80x = 2,332,421,106.62
  5. Step 5: Solve for x
    x = 2,332,421,106.62/53,920.80
  6. Step 6: Final answer
    x = 43,256.43

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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.