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Finding the Fourth Proportional to 56,113.20, 84,169.80 and 14,560.20

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Solution

The fourth proportional to 56,113.20, 84,169.80 and 14,560.20 is: 21,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,113.20 : 84,169.80 = 14,560.20 : x
  2. Step 2: Convert to fraction form
    56,113.20/84,169.80 = 14,560.20/x
  3. Step 3: Cross multiply
    56,113.20x = 84,169.80 × 14,560.20
  4. Step 4: Simplify right side
    56,113.20x = 1,225,529,121.96
  5. Step 5: Solve for x
    x = 1,225,529,121.96/56,113.20
  6. Step 6: Final answer
    x = 21,840.30

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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.