Home / 72,566.28-100,141.92-40,733.28

Finding the Fourth Proportional to 72,566.28, 100,141.92 and 40,733.28

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Solution

The fourth proportional to 72,566.28, 100,141.92 and 40,733.28 is: 56,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,566.28 : 100,141.92 = 40,733.28 : x
  2. Step 2: Convert to fraction form
    72,566.28/100,141.92 = 40,733.28/x
  3. Step 3: Cross multiply
    72,566.28x = 100,141.92 × 40,733.28
  4. Step 4: Simplify right side
    72,566.28x = 4,079,108,867.10
  5. Step 5: Solve for x
    x = 4,079,108,867.10/72,566.28
  6. Step 6: Final answer
    x = 56,212.18

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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.