Home / 45,186.54-67,780.35-21,496.61

Finding the Fourth Proportional to 45,186.54, 67,780.35 and 21,496.61

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Solution

The fourth proportional to 45,186.54, 67,780.35 and 21,496.61 is: 32,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,186.54 : 67,780.35 = 21,496.61 : x
  2. Step 2: Convert to fraction form
    45,186.54/67,780.35 = 21,496.61/x
  3. Step 3: Cross multiply
    45,186.54x = 67,780.35 × 21,496.61
  4. Step 4: Simplify right side
    45,186.54x = 1,457,047,410.71
  5. Step 5: Solve for x
    x = 1,457,047,410.71/45,186.54
  6. Step 6: Final answer
    x = 32,245.16

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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.