Home / 40,705.35-61,066.74-12,624.80

Finding the Fourth Proportional to 40,705.35, 61,066.74 and 12,624.80

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Solution

The fourth proportional to 40,705.35, 61,066.74 and 12,624.80 is: 18,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,705.35 : 61,066.74 = 12,624.80 : x
  2. Step 2: Convert to fraction form
    40,705.35/61,066.74 = 12,624.80/x
  3. Step 3: Cross multiply
    40,705.35x = 61,066.74 × 12,624.80
  4. Step 4: Simplify right side
    40,705.35x = 770,955,073.82
  5. Step 5: Solve for x
    x = 770,955,073.82/40,705.35
  6. Step 6: Final answer
    x = 18,939.90

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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.