Home / 53,108.54-79,662.10-21,518.34

Finding the Fourth Proportional to 53,108.54, 79,662.10 and 21,518.34

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Solution

The fourth proportional to 53,108.54, 79,662.10 and 21,518.34 is: 32,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,108.54 : 79,662.10 = 21,518.34 : x
  2. Step 2: Convert to fraction form
    53,108.54/79,662.10 = 21,518.34/x
  3. Step 3: Cross multiply
    53,108.54x = 79,662.10 × 21,518.34
  4. Step 4: Simplify right side
    53,108.54x = 1,714,196,152.91
  5. Step 5: Solve for x
    x = 1,714,196,152.91/53,108.54
  6. Step 6: Final answer
    x = 32,277.22

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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.