Home / 68,130.99-102,192.27-25,428.11

Finding the Fourth Proportional to 68,130.99, 102,192.27 and 25,428.11

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Solution

The fourth proportional to 68,130.99, 102,192.27 and 25,428.11 is: 38,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130.99 : 102,192.27 = 25,428.11 : x
  2. Step 2: Convert to fraction form
    68,130.99/102,192.27 = 25,428.11/x
  3. Step 3: Cross multiply
    68,130.99x = 102,192.27 × 25,428.11
  4. Step 4: Simplify right side
    68,130.99x = 2,598,555,771.75
  5. Step 5: Solve for x
    x = 2,598,555,771.75/68,130.99
  6. Step 6: Final answer
    x = 38,140.58

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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.