Home / 71,030.13-98,021.38-39,198.80

Finding the Fourth Proportional to 71,030.13, 98,021.38 and 39,198.80

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Solution

The fourth proportional to 71,030.13, 98,021.38 and 39,198.80 is: 54,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,030.13 : 98,021.38 = 39,198.80 : x
  2. Step 2: Convert to fraction form
    71,030.13/98,021.38 = 39,198.80/x
  3. Step 3: Cross multiply
    71,030.13x = 98,021.38 × 39,198.80
  4. Step 4: Simplify right side
    71,030.13x = 3,842,320,470.34
  5. Step 5: Solve for x
    x = 3,842,320,470.34/71,030.13
  6. Step 6: Final answer
    x = 54,094.23

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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.