Home / 43,125.15-64,665.84-19,731.54

Finding the Fourth Proportional to 43,125.15, 64,665.84 and 19,731.54

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Solution

The fourth proportional to 43,125.15, 64,665.84 and 19,731.54 is: 29,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.15 : 64,665.84 = 19,731.54 : x
  2. Step 2: Convert to fraction form
    43,125.15/64,665.84 = 19,731.54/x
  3. Step 3: Cross multiply
    43,125.15x = 64,665.84 × 19,731.54
  4. Step 4: Simplify right side
    43,125.15x = 1,275,956,186.61
  5. Step 5: Solve for x
    x = 1,275,956,186.61/43,125.15
  6. Step 6: Final answer
    x = 29,587.29

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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.