Home / 45,909.77-68,855.58-12,621.24

Finding the Fourth Proportional to 45,909.77, 68,855.58 and 12,621.24

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Solution

The fourth proportional to 45,909.77, 68,855.58 and 12,621.24 is: 18,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,909.77 : 68,855.58 = 12,621.24 : x
  2. Step 2: Convert to fraction form
    45,909.77/68,855.58 = 12,621.24/x
  3. Step 3: Cross multiply
    45,909.77x = 68,855.58 × 12,621.24
  4. Step 4: Simplify right side
    45,909.77x = 869,042,800.52
  5. Step 5: Solve for x
    x = 869,042,800.52/45,909.77
  6. Step 6: Final answer
    x = 18,929.37

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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.