Home / 43,187.63-64,789.47-15,107.02

Finding the Fourth Proportional to 43,187.63, 64,789.47 and 15,107.02

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Solution

The fourth proportional to 43,187.63, 64,789.47 and 15,107.02 is: 22,663.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,187.63 : 64,789.47 = 15,107.02 : x
  2. Step 2: Convert to fraction form
    43,187.63/64,789.47 = 15,107.02/x
  3. Step 3: Cross multiply
    43,187.63x = 64,789.47 × 15,107.02
  4. Step 4: Simplify right side
    43,187.63x = 978,775,657.11
  5. Step 5: Solve for x
    x = 978,775,657.11/43,187.63
  6. Step 6: Final answer
    x = 22,663.34

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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.