Home / 78,977.01-108,988.36-43,167.05

Finding the Fourth Proportional to 78,977.01, 108,988.36 and 43,167.05

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Solution

The fourth proportional to 78,977.01, 108,988.36 and 43,167.05 is: 59,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,977.01 : 108,988.36 = 43,167.05 : x
  2. Step 2: Convert to fraction form
    78,977.01/108,988.36 = 43,167.05/x
  3. Step 3: Cross multiply
    78,977.01x = 108,988.36 × 43,167.05
  4. Step 4: Simplify right side
    78,977.01x = 4,704,705,985.54
  5. Step 5: Solve for x
    x = 4,704,705,985.54/78,977.01
  6. Step 6: Final answer
    x = 59,570.58

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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.