Home / 45,509.77-68,238.96-18,840.70

Finding the Fourth Proportional to 45,509.77, 68,238.96 and 18,840.70

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Solution

The fourth proportional to 45,509.77, 68,238.96 and 18,840.70 is: 28,250.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,509.77 : 68,238.96 = 18,840.70 : x
  2. Step 2: Convert to fraction form
    45,509.77/68,238.96 = 18,840.70/x
  3. Step 3: Cross multiply
    45,509.77x = 68,238.96 × 18,840.70
  4. Step 4: Simplify right side
    45,509.77x = 1,285,669,773.67
  5. Step 5: Solve for x
    x = 1,285,669,773.67/45,509.77
  6. Step 6: Final answer
    x = 28,250.41

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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.