Home / 45,719.71-68,579.55-19,405.99

Finding the Fourth Proportional to 45,719.71, 68,579.55 and 19,405.99

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Solution

The fourth proportional to 45,719.71, 68,579.55 and 19,405.99 is: 29,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,719.71 : 68,579.55 = 19,405.99 : x
  2. Step 2: Convert to fraction form
    45,719.71/68,579.55 = 19,405.99/x
  3. Step 3: Cross multiply
    45,719.71x = 68,579.55 × 19,405.99
  4. Step 4: Simplify right side
    45,719.71x = 1,330,854,061.50
  5. Step 5: Solve for x
    x = 1,330,854,061.50/45,719.71
  6. Step 6: Final answer
    x = 29,108.98

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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.