Home / 52,133.64-78,200.46-12,690.41

Finding the Fourth Proportional to 52,133.64, 78,200.46 and 12,690.41

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Solution

The fourth proportional to 52,133.64, 78,200.46 and 12,690.41 is: 19,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,133.64 : 78,200.46 = 12,690.41 : x
  2. Step 2: Convert to fraction form
    52,133.64/78,200.46 = 12,690.41/x
  3. Step 3: Cross multiply
    52,133.64x = 78,200.46 × 12,690.41
  4. Step 4: Simplify right side
    52,133.64x = 992,395,793.88
  5. Step 5: Solve for x
    x = 992,395,793.88/52,133.64
  6. Step 6: Final answer
    x = 19,035.61

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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.