Home / 79,428.09-119,116.89-26,107.76

Finding the Fourth Proportional to 79,428.09, 119,116.89 and 26,107.76

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Solution

The fourth proportional to 79,428.09, 119,116.89 and 26,107.76 is: 39,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,428.09 : 119,116.89 = 26,107.76 : x
  2. Step 2: Convert to fraction form
    79,428.09/119,116.89 = 26,107.76/x
  3. Step 3: Cross multiply
    79,428.09x = 119,116.89 × 26,107.76
  4. Step 4: Simplify right side
    79,428.09x = 3,109,875,571.76
  5. Step 5: Solve for x
    x = 3,109,875,571.76/79,428.09
  6. Step 6: Final answer
    x = 39,153.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.