Home / 42,936.77-64,444.45-21,891.90

Finding the Fourth Proportional to 42,936.77, 64,444.45 and 21,891.90

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Solution

The fourth proportional to 42,936.77, 64,444.45 and 21,891.90 is: 32,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.77 : 64,444.45 = 21,891.90 : x
  2. Step 2: Convert to fraction form
    42,936.77/64,444.45 = 21,891.90/x
  3. Step 3: Cross multiply
    42,936.77x = 64,444.45 × 21,891.90
  4. Step 4: Simplify right side
    42,936.77x = 1,410,811,345.50
  5. Step 5: Solve for x
    x = 1,410,811,345.50/42,936.77
  6. Step 6: Final answer
    x = 32,857.88

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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.