Home / 72,186.63-108,238.38-27,807.60

Finding the Fourth Proportional to 72,186.63, 108,238.38 and 27,807.60

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Solution

The fourth proportional to 72,186.63, 108,238.38 and 27,807.60 is: 41,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,186.63 : 108,238.38 = 27,807.60 : x
  2. Step 2: Convert to fraction form
    72,186.63/108,238.38 = 27,807.60/x
  3. Step 3: Cross multiply
    72,186.63x = 108,238.38 × 27,807.60
  4. Step 4: Simplify right side
    72,186.63x = 3,009,849,877.30
  5. Step 5: Solve for x
    x = 3,009,849,877.30/72,186.63
  6. Step 6: Final answer
    x = 41,695.39

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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.