Home / 73,514.36-110,272.80-20,925.20

Finding the Fourth Proportional to 73,514.36, 110,272.80 and 20,925.20

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Solution

The fourth proportional to 73,514.36, 110,272.80 and 20,925.20 is: 31,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,514.36 : 110,272.80 = 20,925.20 : x
  2. Step 2: Convert to fraction form
    73,514.36/110,272.80 = 20,925.20/x
  3. Step 3: Cross multiply
    73,514.36x = 110,272.80 × 20,925.20
  4. Step 4: Simplify right side
    73,514.36x = 2,307,480,394.56
  5. Step 5: Solve for x
    x = 2,307,480,394.56/73,514.36
  6. Step 6: Final answer
    x = 31,388.16

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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.