Home / 72,186.88-108,231.04-38,457.94

Finding the Fourth Proportional to 72,186.88, 108,231.04 and 38,457.94

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Solution

The fourth proportional to 72,186.88, 108,231.04 and 38,457.94 is: 57,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,186.88 : 108,231.04 = 38,457.94 : x
  2. Step 2: Convert to fraction form
    72,186.88/108,231.04 = 38,457.94/x
  3. Step 3: Cross multiply
    72,186.88x = 108,231.04 × 38,457.94
  4. Step 4: Simplify right side
    72,186.88x = 4,162,342,842.46
  5. Step 5: Solve for x
    x = 4,162,342,842.46/72,186.88
  6. Step 6: Final answer
    x = 57,660.66

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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.