Home / 145,387.88-217,992.50-56,537.80

Finding the Fourth Proportional to 145,387.88, 217,992.50 and 56,537.80

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Solution

The fourth proportional to 145,387.88, 217,992.50 and 56,537.80 is: 84,771.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,387.88 : 217,992.50 = 56,537.80 : x
  2. Step 2: Convert to fraction form
    145,387.88/217,992.50 = 56,537.80/x
  3. Step 3: Cross multiply
    145,387.88x = 217,992.50 × 56,537.80
  4. Step 4: Simplify right side
    145,387.88x = 12,324,815,750.85
  5. Step 5: Solve for x
    x = 12,324,815,750.85/145,387.88
  6. Step 6: Final answer
    x = 84,771.96

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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.