Home / 51,553.31-71,140.20-30,328.48

Finding the Fourth Proportional to 51,553.31, 71,140.20 and 30,328.48

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Solution

The fourth proportional to 51,553.31, 71,140.20 and 30,328.48 is: 41,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,553.31 : 71,140.20 = 30,328.48 : x
  2. Step 2: Convert to fraction form
    51,553.31/71,140.20 = 30,328.48/x
  3. Step 3: Cross multiply
    51,553.31x = 71,140.20 × 30,328.48
  4. Step 4: Simplify right side
    51,553.31x = 2,157,573,777.20
  5. Step 5: Solve for x
    x = 2,157,573,777.20/51,553.31
  6. Step 6: Final answer
    x = 41,851.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.