Home / 42,108.88-63,163.28-12,526.64

Finding the Fourth Proportional to 42,108.88, 63,163.28 and 12,526.64

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Solution

The fourth proportional to 42,108.88, 63,163.28 and 12,526.64 is: 18,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,108.88 : 63,163.28 = 12,526.64 : x
  2. Step 2: Convert to fraction form
    42,108.88/63,163.28 = 12,526.64/x
  3. Step 3: Cross multiply
    42,108.88x = 63,163.28 × 12,526.64
  4. Step 4: Simplify right side
    42,108.88x = 791,223,669.78
  5. Step 5: Solve for x
    x = 791,223,669.78/42,108.88
  6. Step 6: Final answer
    x = 18,789.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.