Home / 43,125.32-64,666.10-19,731.71

Finding the Fourth Proportional to 43,125.32, 64,666.10 and 19,731.71

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Solution

The fourth proportional to 43,125.32, 64,666.10 and 19,731.71 is: 29,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.32 : 64,666.10 = 19,731.71 : x
  2. Step 2: Convert to fraction form
    43,125.32/64,666.10 = 19,731.71/x
  3. Step 3: Cross multiply
    43,125.32x = 64,666.10 × 19,731.71
  4. Step 4: Simplify right side
    43,125.32x = 1,275,972,943.03
  5. Step 5: Solve for x
    x = 1,275,972,943.03/43,125.32
  6. Step 6: Final answer
    x = 29,587.56

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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.