Home / 51,219.49-70,687.55-31,081.48

Finding the Fourth Proportional to 51,219.49, 70,687.55 and 31,081.48

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Solution

The fourth proportional to 51,219.49, 70,687.55 and 31,081.48 is: 42,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,219.49 : 70,687.55 = 31,081.48 : x
  2. Step 2: Convert to fraction form
    51,219.49/70,687.55 = 31,081.48/x
  3. Step 3: Cross multiply
    51,219.49x = 70,687.55 × 31,081.48
  4. Step 4: Simplify right side
    51,219.49x = 2,197,073,671.57
  5. Step 5: Solve for x
    x = 2,197,073,671.57/51,219.49
  6. Step 6: Final answer
    x = 42,895.27

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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.