Home / 51,485.40-71,049.51-28,824.28

Finding the Fourth Proportional to 51,485.40, 71,049.51 and 28,824.28

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Solution

The fourth proportional to 51,485.40, 71,049.51 and 28,824.28 is: 39,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,485.40 : 71,049.51 = 28,824.28 : x
  2. Step 2: Convert to fraction form
    51,485.40/71,049.51 = 28,824.28/x
  3. Step 3: Cross multiply
    51,485.40x = 71,049.51 × 28,824.28
  4. Step 4: Simplify right side
    51,485.40x = 2,047,950,970.10
  5. Step 5: Solve for x
    x = 2,047,950,970.10/51,485.40
  6. Step 6: Final answer
    x = 39,777.31

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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.