Home / 61,780.52-85,193.46-52,857.56

Finding the Fourth Proportional to 61,780.52, 85,193.46 and 52,857.56

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Solution

The fourth proportional to 61,780.52, 85,193.46 and 52,857.56 is: 72,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,780.52 : 85,193.46 = 52,857.56 : x
  2. Step 2: Convert to fraction form
    61,780.52/85,193.46 = 52,857.56/x
  3. Step 3: Cross multiply
    61,780.52x = 85,193.46 × 52,857.56
  4. Step 4: Simplify right side
    61,780.52x = 4,503,118,423.56
  5. Step 5: Solve for x
    x = 4,503,118,423.56/61,780.52
  6. Step 6: Final answer
    x = 72,888.97

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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.