Home / 72,505.24-100,047.78-40,674.04

Finding the Fourth Proportional to 72,505.24, 100,047.78 and 40,674.04

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Solution

The fourth proportional to 72,505.24, 100,047.78 and 40,674.04 is: 56,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,505.24 : 100,047.78 = 40,674.04 : x
  2. Step 2: Convert to fraction form
    72,505.24/100,047.78 = 40,674.04/x
  3. Step 3: Cross multiply
    72,505.24x = 100,047.78 × 40,674.04
  4. Step 4: Simplify right side
    72,505.24x = 4,069,347,405.63
  5. Step 5: Solve for x
    x = 4,069,347,405.63/72,505.24
  6. Step 6: Final answer
    x = 56,124.87

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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.