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Finding the Fourth Proportional to 63,562.82, 87,405.64 and 55,164.74

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Solution

The fourth proportional to 63,562.82, 87,405.64 and 55,164.74 is: 75,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,562.82 : 87,405.64 = 55,164.74 : x
  2. Step 2: Convert to fraction form
    63,562.82/87,405.64 = 55,164.74/x
  3. Step 3: Cross multiply
    63,562.82x = 87,405.64 × 55,164.74
  4. Step 4: Simplify right side
    63,562.82x = 4,821,709,405.13
  5. Step 5: Solve for x
    x = 4,821,709,405.13/63,562.82
  6. Step 6: Final answer
    x = 75,857.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.