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Finding the Fourth Proportional to 64,086.80, 95,903.40 and 55,857.20

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Solution

The fourth proportional to 64,086.80, 95,903.40 and 55,857.20 is: 83,588.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,086.80 : 95,903.40 = 55,857.20 : x
  2. Step 2: Convert to fraction form
    64,086.80/95,903.40 = 55,857.20/x
  3. Step 3: Cross multiply
    64,086.80x = 95,903.40 × 55,857.20
  4. Step 4: Simplify right side
    64,086.80x = 5,356,895,394.48
  5. Step 5: Solve for x
    x = 5,356,895,394.48/64,086.80
  6. Step 6: Final answer
    x = 83,588.12

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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.