Home / 43,125.52-64,666.40-19,731.91

Finding the Fourth Proportional to 43,125.52, 64,666.40 and 19,731.91

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Solution

The fourth proportional to 43,125.52, 64,666.40 and 19,731.91 is: 29,587.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.52 : 64,666.40 = 19,731.91 : x
  2. Step 2: Convert to fraction form
    43,125.52/64,666.40 = 19,731.91/x
  3. Step 3: Cross multiply
    43,125.52x = 64,666.40 × 19,731.91
  4. Step 4: Simplify right side
    43,125.52x = 1,275,991,584.82
  5. Step 5: Solve for x
    x = 1,275,991,584.82/43,125.52
  6. Step 6: Final answer
    x = 29,587.85

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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.