Home / 56,222.60-84,366.30-21,187.40

Finding the Fourth Proportional to 56,222.60, 84,366.30 and 21,187.40

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Solution

The fourth proportional to 56,222.60, 84,366.30 and 21,187.40 is: 31,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,222.60 : 84,366.30 = 21,187.40 : x
  2. Step 2: Convert to fraction form
    56,222.60/84,366.30 = 21,187.40/x
  3. Step 3: Cross multiply
    56,222.60x = 84,366.30 × 21,187.40
  4. Step 4: Simplify right side
    56,222.60x = 1,787,502,544.62
  5. Step 5: Solve for x
    x = 1,787,502,544.62/56,222.60
  6. Step 6: Final answer
    x = 31,793.31

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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.