Home / 51,427.28-70,974.92-31,285.60

Finding the Fourth Proportional to 51,427.28, 70,974.92 and 31,285.60

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Solution

The fourth proportional to 51,427.28, 70,974.92 and 31,285.60 is: 43,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,427.28 : 70,974.92 = 31,285.60 : x
  2. Step 2: Convert to fraction form
    51,427.28/70,974.92 = 31,285.60/x
  3. Step 3: Cross multiply
    51,427.28x = 70,974.92 × 31,285.60
  4. Step 4: Simplify right side
    51,427.28x = 2,220,492,957.15
  5. Step 5: Solve for x
    x = 2,220,492,957.15/51,427.28
  6. Step 6: Final answer
    x = 43,177.34

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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.