Home / 53,220.72-79,731.36-47,743.44

Finding the Fourth Proportional to 53,220.72, 79,731.36 and 47,743.44

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Solution

The fourth proportional to 53,220.72, 79,731.36 and 47,743.44 is: 71,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,220.72 : 79,731.36 = 47,743.44 : x
  2. Step 2: Convert to fraction form
    53,220.72/79,731.36 = 47,743.44/x
  3. Step 3: Cross multiply
    53,220.72x = 79,731.36 × 47,743.44
  4. Step 4: Simplify right side
    53,220.72x = 3,806,649,402.28
  5. Step 5: Solve for x
    x = 3,806,649,402.28/53,220.72
  6. Step 6: Final answer
    x = 71,525.70

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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.