Home / 71,915.91-99,232.10-41,688.85

Finding the Fourth Proportional to 71,915.91, 99,232.10 and 41,688.85

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Solution

The fourth proportional to 71,915.91, 99,232.10 and 41,688.85 is: 57,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,915.91 : 99,232.10 = 41,688.85 : x
  2. Step 2: Convert to fraction form
    71,915.91/99,232.10 = 41,688.85/x
  3. Step 3: Cross multiply
    71,915.91x = 99,232.10 × 41,688.85
  4. Step 4: Simplify right side
    71,915.91x = 4,136,871,427.48
  5. Step 5: Solve for x
    x = 4,136,871,427.48/71,915.91
  6. Step 6: Final answer
    x = 57,523.73

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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.