Home / 79,208.09-109,302.99-45,215.23

Finding the Fourth Proportional to 79,208.09, 109,302.99 and 45,215.23

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Solution

The fourth proportional to 79,208.09, 109,302.99 and 45,215.23 is: 62,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,208.09 : 109,302.99 = 45,215.23 : x
  2. Step 2: Convert to fraction form
    79,208.09/109,302.99 = 45,215.23/x
  3. Step 3: Cross multiply
    79,208.09x = 109,302.99 × 45,215.23
  4. Step 4: Simplify right side
    79,208.09x = 4,942,159,849.00
  5. Step 5: Solve for x
    x = 4,942,159,849.00/79,208.09
  6. Step 6: Final answer
    x = 62,394.63

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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.