Home / 78,370.14-108,181.62-52,891.50

Finding the Fourth Proportional to 78,370.14, 108,181.62 and 52,891.50

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Solution

The fourth proportional to 78,370.14, 108,181.62 and 52,891.50 is: 73,011.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,370.14 : 108,181.62 = 52,891.50 : x
  2. Step 2: Convert to fraction form
    78,370.14/108,181.62 = 52,891.50/x
  3. Step 3: Cross multiply
    78,370.14x = 108,181.62 × 52,891.50
  4. Step 4: Simplify right side
    78,370.14x = 5,721,888,154.23
  5. Step 5: Solve for x
    x = 5,721,888,154.23/78,370.14
  6. Step 6: Final answer
    x = 73,011.07

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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.