Home / 145,049.30-217,579.31-39,876.50

Finding the Fourth Proportional to 145,049.30, 217,579.31 and 39,876.50

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Solution

The fourth proportional to 145,049.30, 217,579.31 and 39,876.50 is: 59,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,049.30 : 217,579.31 = 39,876.50 : x
  2. Step 2: Convert to fraction form
    145,049.30/217,579.31 = 39,876.50/x
  3. Step 3: Cross multiply
    145,049.30x = 217,579.31 × 39,876.50
  4. Step 4: Simplify right side
    145,049.30x = 8,676,301,355.22
  5. Step 5: Solve for x
    x = 8,676,301,355.22/145,049.30
  6. Step 6: Final answer
    x = 59,816.22

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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.