Home / 70,579.17-105,872.87-19,973.97

Finding the Fourth Proportional to 70,579.17, 105,872.87 and 19,973.97

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Solution

The fourth proportional to 70,579.17, 105,872.87 and 19,973.97 is: 29,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,579.17 : 105,872.87 = 19,973.97 : x
  2. Step 2: Convert to fraction form
    70,579.17/105,872.87 = 19,973.97/x
  3. Step 3: Cross multiply
    70,579.17x = 105,872.87 × 19,973.97
  4. Step 4: Simplify right side
    70,579.17x = 2,114,701,579.13
  5. Step 5: Solve for x
    x = 2,114,701,579.13/70,579.17
  6. Step 6: Final answer
    x = 29,962.12

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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.