Home / 52,819.13-72,890.40-30,463.13

Finding the Fourth Proportional to 52,819.13, 72,890.40 and 30,463.13

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Solution

The fourth proportional to 52,819.13, 72,890.40 and 30,463.13 is: 42,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,819.13 : 72,890.40 = 30,463.13 : x
  2. Step 2: Convert to fraction form
    52,819.13/72,890.40 = 30,463.13/x
  3. Step 3: Cross multiply
    52,819.13x = 72,890.40 × 30,463.13
  4. Step 4: Simplify right side
    52,819.13x = 2,220,469,366.50
  5. Step 5: Solve for x
    x = 2,220,469,366.50/52,819.13
  6. Step 6: Final answer
    x = 42,039.12

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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.