Home / 45,490.35-68,206.17-19,188.03

Finding the Fourth Proportional to 45,490.35, 68,206.17 and 19,188.03

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Solution

The fourth proportional to 45,490.35, 68,206.17 and 19,188.03 is: 28,769.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,490.35 : 68,206.17 = 19,188.03 : x
  2. Step 2: Convert to fraction form
    45,490.35/68,206.17 = 19,188.03/x
  3. Step 3: Cross multiply
    45,490.35x = 68,206.17 × 19,188.03
  4. Step 4: Simplify right side
    45,490.35x = 1,308,742,036.15
  5. Step 5: Solve for x
    x = 1,308,742,036.15/45,490.35
  6. Step 6: Final answer
    x = 28,769.66

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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.