Home / 72,537.45-100,096.28-40,700.21

Finding the Fourth Proportional to 72,537.45, 100,096.28 and 40,700.21

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Solution

The fourth proportional to 72,537.45, 100,096.28 and 40,700.21 is: 56,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,537.45 : 100,096.28 = 40,700.21 : x
  2. Step 2: Convert to fraction form
    72,537.45/100,096.28 = 40,700.21/x
  3. Step 3: Cross multiply
    72,537.45x = 100,096.28 × 40,700.21
  4. Step 4: Simplify right side
    72,537.45x = 4,073,938,912.24
  5. Step 5: Solve for x
    x = 4,073,938,912.24/72,537.45
  6. Step 6: Final answer
    x = 56,163.25

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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.