Home / 71,388.42-98,514.56-39,556.64

Finding the Fourth Proportional to 71,388.42, 98,514.56 and 39,556.64

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Solution

The fourth proportional to 71,388.42, 98,514.56 and 39,556.64 is: 54,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,388.42 : 98,514.56 = 39,556.64 : x
  2. Step 2: Convert to fraction form
    71,388.42/98,514.56 = 39,556.64/x
  3. Step 3: Cross multiply
    71,388.42x = 98,514.56 × 39,556.64
  4. Step 4: Simplify right side
    71,388.42x = 3,896,904,294.32
  5. Step 5: Solve for x
    x = 3,896,904,294.32/71,388.42
  6. Step 6: Final answer
    x = 54,587.34

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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.