Home / 72,215.68-99,662.40-43,922.56

Finding the Fourth Proportional to 72,215.68, 99,662.40 and 43,922.56

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Solution

The fourth proportional to 72,215.68, 99,662.40 and 43,922.56 is: 60,616.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215.68 : 99,662.40 = 43,922.56 : x
  2. Step 2: Convert to fraction form
    72,215.68/99,662.40 = 43,922.56/x
  3. Step 3: Cross multiply
    72,215.68x = 99,662.40 × 43,922.56
  4. Step 4: Simplify right side
    72,215.68x = 4,377,427,743.74
  5. Step 5: Solve for x
    x = 4,377,427,743.74/72,215.68
  6. Step 6: Final answer
    x = 60,616.03

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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.