Home / 53,712.13-80,590.20-28,780.33

Finding the Fourth Proportional to 53,712.13, 80,590.20 and 28,780.33

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Solution

The fourth proportional to 53,712.13, 80,590.20 and 28,780.33 is: 43,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,712.13 : 80,590.20 = 28,780.33 : x
  2. Step 2: Convert to fraction form
    53,712.13/80,590.20 = 28,780.33/x
  3. Step 3: Cross multiply
    53,712.13x = 80,590.20 × 28,780.33
  4. Step 4: Simplify right side
    53,712.13x = 2,319,412,550.77
  5. Step 5: Solve for x
    x = 2,319,412,550.77/53,712.13
  6. Step 6: Final answer
    x = 43,182.29

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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.