Home / 78,973.14-108,982.68-43,163.16

Finding the Fourth Proportional to 78,973.14, 108,982.68 and 43,163.16

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Solution

The fourth proportional to 78,973.14, 108,982.68 and 43,163.16 is: 59,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,973.14 : 108,982.68 = 43,163.16 : x
  2. Step 2: Convert to fraction form
    78,973.14/108,982.68 = 43,163.16/x
  3. Step 3: Cross multiply
    78,973.14x = 108,982.68 × 43,163.16
  4. Step 4: Simplify right side
    78,973.14x = 4,704,036,854.07
  5. Step 5: Solve for x
    x = 4,704,036,854.07/78,973.14
  6. Step 6: Final answer
    x = 59,565.02

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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.