Home / 72,577.89-100,157.61-40,747.02

Finding the Fourth Proportional to 72,577.89, 100,157.61 and 40,747.02

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Solution

The fourth proportional to 72,577.89, 100,157.61 and 40,747.02 is: 56,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,577.89 : 100,157.61 = 40,747.02 : x
  2. Step 2: Convert to fraction form
    72,577.89/100,157.61 = 40,747.02/x
  3. Step 3: Cross multiply
    72,577.89x = 100,157.61 × 40,747.02
  4. Step 4: Simplify right side
    72,577.89x = 4,081,123,915.03
  5. Step 5: Solve for x
    x = 4,081,123,915.03/72,577.89
  6. Step 6: Final answer
    x = 56,230.95

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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.