Home / 73,514.32-101,449.80-39,980.24

Finding the Fourth Proportional to 73,514.32, 101,449.80 and 39,980.24

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Solution

The fourth proportional to 73,514.32, 101,449.80 and 39,980.24 is: 55,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,514.32 : 101,449.80 = 39,980.24 : x
  2. Step 2: Convert to fraction form
    73,514.32/101,449.80 = 39,980.24/x
  3. Step 3: Cross multiply
    73,514.32x = 101,449.80 × 39,980.24
  4. Step 4: Simplify right side
    73,514.32x = 4,055,987,351.95
  5. Step 5: Solve for x
    x = 4,055,987,351.95/73,514.32
  6. Step 6: Final answer
    x = 55,172.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.