Home / 275,127.17-412,638.27-85,589.88

Finding the Fourth Proportional to 275,127.17, 412,638.27 and 85,589.88

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Solution

The fourth proportional to 275,127.17, 412,638.27 and 85,589.88 is: 128,368.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,127.17 : 412,638.27 = 85,589.88 : x
  2. Step 2: Convert to fraction form
    275,127.17/412,638.27 = 85,589.88/x
  3. Step 3: Cross multiply
    275,127.17x = 412,638.27 × 85,589.88
  4. Step 4: Simplify right side
    275,127.17x = 35,317,660,012.71
  5. Step 5: Solve for x
    x = 35,317,660,012.71/275,127.17
  6. Step 6: Final answer
    x = 128,368.49

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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.