Home / 72,592.12-100,176.78-40,763.80

Finding the Fourth Proportional to 72,592.12, 100,176.78 and 40,763.80

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Solution

The fourth proportional to 72,592.12, 100,176.78 and 40,763.80 is: 56,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592.12 : 100,176.78 = 40,763.80 : x
  2. Step 2: Convert to fraction form
    72,592.12/100,176.78 = 40,763.80/x
  3. Step 3: Cross multiply
    72,592.12x = 100,176.78 × 40,763.80
  4. Step 4: Simplify right side
    72,592.12x = 4,083,586,224.56
  5. Step 5: Solve for x
    x = 4,083,586,224.56/72,592.12
  6. Step 6: Final answer
    x = 56,253.85

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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.