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Finding the Fourth Proportional to 63,646.56, 87,883.92 and 56,920.32

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Solution

The fourth proportional to 63,646.56, 87,883.92 and 56,920.32 is: 78,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,646.56 : 87,883.92 = 56,920.32 : x
  2. Step 2: Convert to fraction form
    63,646.56/87,883.92 = 56,920.32/x
  3. Step 3: Cross multiply
    63,646.56x = 87,883.92 × 56,920.32
  4. Step 4: Simplify right side
    63,646.56x = 5,002,380,849.25
  5. Step 5: Solve for x
    x = 5,002,380,849.25/63,646.56
  6. Step 6: Final answer
    x = 78,596.25

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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.