Home / 52,043.67-78,076.30-20,881.35

Finding the Fourth Proportional to 52,043.67, 78,076.30 and 20,881.35

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Solution

The fourth proportional to 52,043.67, 78,076.30 and 20,881.35 is: 31,326.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,043.67 : 78,076.30 = 20,881.35 : x
  2. Step 2: Convert to fraction form
    52,043.67/78,076.30 = 20,881.35/x
  3. Step 3: Cross multiply
    52,043.67x = 78,076.30 × 20,881.35
  4. Step 4: Simplify right side
    52,043.67x = 1,630,338,104.42
  5. Step 5: Solve for x
    x = 1,630,338,104.42/52,043.67
  6. Step 6: Final answer
    x = 31,326.35

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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.