Home / 47,623.20-71,434.80-21,379.20

Finding the Fourth Proportional to 47,623.20, 71,434.80 and 21,379.20

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Solution

The fourth proportional to 47,623.20, 71,434.80 and 21,379.20 is: 32,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,623.20 : 71,434.80 = 21,379.20 : x
  2. Step 2: Convert to fraction form
    47,623.20/71,434.80 = 21,379.20/x
  3. Step 3: Cross multiply
    47,623.20x = 71,434.80 × 21,379.20
  4. Step 4: Simplify right side
    47,623.20x = 1,527,218,876.16
  5. Step 5: Solve for x
    x = 1,527,218,876.16/47,623.20
  6. Step 6: Final answer
    x = 32,068.80

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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.