Home / 53,314.36-79,968.80-20,031.86

Finding the Fourth Proportional to 53,314.36, 79,968.80 and 20,031.86

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Solution

The fourth proportional to 53,314.36, 79,968.80 and 20,031.86 is: 30,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,314.36 : 79,968.80 = 20,031.86 : x
  2. Step 2: Convert to fraction form
    53,314.36/79,968.80 = 20,031.86/x
  3. Step 3: Cross multiply
    53,314.36x = 79,968.80 × 20,031.86
  4. Step 4: Simplify right side
    53,314.36x = 1,601,924,055.97
  5. Step 5: Solve for x
    x = 1,601,924,055.97/53,314.36
  6. Step 6: Final answer
    x = 30,046.77

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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.