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Finding the Fourth Proportional to 56,223.81, 84,335.67 and 18,776.88

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Solution

The fourth proportional to 56,223.81, 84,335.67 and 18,776.88 is: 28,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,223.81 : 84,335.67 = 18,776.88 : x
  2. Step 2: Convert to fraction form
    56,223.81/84,335.67 = 18,776.88/x
  3. Step 3: Cross multiply
    56,223.81x = 84,335.67 × 18,776.88
  4. Step 4: Simplify right side
    56,223.81x = 1,583,560,755.31
  5. Step 5: Solve for x
    x = 1,583,560,755.31/56,223.81
  6. Step 6: Final answer
    x = 28,165.30

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1.5x scale

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.