Home / 100,020.17-150,030.44-40,855.85

Finding the Fourth Proportional to 100,020.17, 150,030.44 and 40,855.85

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Solution

The fourth proportional to 100,020.17, 150,030.44 and 40,855.85 is: 61,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,020.17 : 150,030.44 = 40,855.85 : x
  2. Step 2: Convert to fraction form
    100,020.17/150,030.44 = 40,855.85/x
  3. Step 3: Cross multiply
    100,020.17x = 150,030.44 × 40,855.85
  4. Step 4: Simplify right side
    100,020.17x = 6,129,620,947.79
  5. Step 5: Solve for x
    x = 6,129,620,947.79/100,020.17
  6. Step 6: Final answer
    x = 61,283.85

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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.