Home / 45,750.83-68,624.21-12,470.89

Finding the Fourth Proportional to 45,750.83, 68,624.21 and 12,470.89

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Solution

The fourth proportional to 45,750.83, 68,624.21 and 12,470.89 is: 18,705.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,750.83 : 68,624.21 = 12,470.89 : x
  2. Step 2: Convert to fraction form
    45,750.83/68,624.21 = 12,470.89/x
  3. Step 3: Cross multiply
    45,750.83x = 68,624.21 × 12,470.89
  4. Step 4: Simplify right side
    45,750.83x = 855,804,769.53
  5. Step 5: Solve for x
    x = 855,804,769.53/45,750.83
  6. Step 6: Final answer
    x = 18,705.78

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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.