Home / 52,930.55-79,335.42-21,320.36

Finding the Fourth Proportional to 52,930.55, 79,335.42 and 21,320.36

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Solution

The fourth proportional to 52,930.55, 79,335.42 and 21,320.36 is: 31,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,930.55 : 79,335.42 = 21,320.36 : x
  2. Step 2: Convert to fraction form
    52,930.55/79,335.42 = 21,320.36/x
  3. Step 3: Cross multiply
    52,930.55x = 79,335.42 × 21,320.36
  4. Step 4: Simplify right side
    52,930.55x = 1,691,459,913.49
  5. Step 5: Solve for x
    x = 1,691,459,913.49/52,930.55
  6. Step 6: Final answer
    x = 31,956.22

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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.