Home / 85,891.02-128,848.68-33,305.82

Finding the Fourth Proportional to 85,891.02, 128,848.68 and 33,305.82

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Solution

The fourth proportional to 85,891.02, 128,848.68 and 33,305.82 is: 49,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,891.02 : 128,848.68 = 33,305.82 : x
  2. Step 2: Convert to fraction form
    85,891.02/128,848.68 = 33,305.82/x
  3. Step 3: Cross multiply
    85,891.02x = 128,848.68 × 33,305.82
  4. Step 4: Simplify right side
    85,891.02x = 4,291,410,943.32
  5. Step 5: Solve for x
    x = 4,291,410,943.32/85,891.02
  6. Step 6: Final answer
    x = 49,963.44

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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.