Home / 71,428.07-98,556.85-42,351.06

Finding the Fourth Proportional to 71,428.07, 98,556.85 and 42,351.06

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Solution

The fourth proportional to 71,428.07, 98,556.85 and 42,351.06 is: 58,436.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,428.07 : 98,556.85 = 42,351.06 : x
  2. Step 2: Convert to fraction form
    71,428.07/98,556.85 = 42,351.06/x
  3. Step 3: Cross multiply
    71,428.07x = 98,556.85 × 42,351.06
  4. Step 4: Simplify right side
    71,428.07x = 4,173,987,067.76
  5. Step 5: Solve for x
    x = 4,173,987,067.76/71,428.07
  6. Step 6: Final answer
    x = 58,436.23

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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.