Home / 72,113.56-108,141.12-29,965

Finding the Fourth Proportional to 72,113.56, 108,141.12 and 29,965

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Solution

The fourth proportional to 72,113.56, 108,141.12 and 29,965 is: 44,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,113.56 : 108,141.12 = 29,965 : x
  2. Step 2: Convert to fraction form
    72,113.56/108,141.12 = 29,965/x
  3. Step 3: Cross multiply
    72,113.56x = 108,141.12 × 29,965
  4. Step 4: Simplify right side
    72,113.56x = 3,240,448,660.80
  5. Step 5: Solve for x
    x = 3,240,448,660.80/72,113.56
  6. Step 6: Final answer
    x = 44,935.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.