Home / 52,141.67-78,182.80-20,534.62

Finding the Fourth Proportional to 52,141.67, 78,182.80 and 20,534.62

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Solution

The fourth proportional to 52,141.67, 78,182.80 and 20,534.62 is: 30,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,141.67 : 78,182.80 = 20,534.62 : x
  2. Step 2: Convert to fraction form
    52,141.67/78,182.80 = 20,534.62/x
  3. Step 3: Cross multiply
    52,141.67x = 78,182.80 × 20,534.62
  4. Step 4: Simplify right side
    52,141.67x = 1,605,453,841.74
  5. Step 5: Solve for x
    x = 1,605,453,841.74/52,141.67
  6. Step 6: Final answer
    x = 30,790.23

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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.