Home / 42,205.48-63,311.56-14,125.68

Finding the Fourth Proportional to 42,205.48, 63,311.56 and 14,125.68

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Solution

The fourth proportional to 42,205.48, 63,311.56 and 14,125.68 is: 21,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,205.48 : 63,311.56 = 14,125.68 : x
  2. Step 2: Convert to fraction form
    42,205.48/63,311.56 = 14,125.68/x
  3. Step 3: Cross multiply
    42,205.48x = 63,311.56 × 14,125.68
  4. Step 4: Simplify right side
    42,205.48x = 894,318,836.86
  5. Step 5: Solve for x
    x = 894,318,836.86/42,205.48
  6. Step 6: Final answer
    x = 21,189.64

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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.