Home / 45,665.02-68,470.19-18,978.83

Finding the Fourth Proportional to 45,665.02, 68,470.19 and 18,978.83

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Solution

The fourth proportional to 45,665.02, 68,470.19 and 18,978.83 is: 28,456.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,665.02 : 68,470.19 = 18,978.83 : x
  2. Step 2: Convert to fraction form
    45,665.02/68,470.19 = 18,978.83/x
  3. Step 3: Cross multiply
    45,665.02x = 68,470.19 × 18,978.83
  4. Step 4: Simplify right side
    45,665.02x = 1,299,484,125.96
  5. Step 5: Solve for x
    x = 1,299,484,125.96/45,665.02
  6. Step 6: Final answer
    x = 28,456.89

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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.