Home / 45,919.77-68,870.58-12,631.24

Finding the Fourth Proportional to 45,919.77, 68,870.58 and 12,631.24

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Solution

The fourth proportional to 45,919.77, 68,870.58 and 12,631.24 is: 18,944.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.77 : 68,870.58 = 12,631.24 : x
  2. Step 2: Convert to fraction form
    45,919.77/68,870.58 = 12,631.24/x
  3. Step 3: Cross multiply
    45,919.77x = 68,870.58 × 12,631.24
  4. Step 4: Simplify right side
    45,919.77x = 869,920,824.92
  5. Step 5: Solve for x
    x = 869,920,824.92/45,919.77
  6. Step 6: Final answer
    x = 18,944.37

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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.