Home / 84,991.15-117,287.90-47,265.40

Finding the Fourth Proportional to 84,991.15, 117,287.90 and 47,265.40

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Solution

The fourth proportional to 84,991.15, 117,287.90 and 47,265.40 is: 65,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,991.15 : 117,287.90 = 47,265.40 : x
  2. Step 2: Convert to fraction form
    84,991.15/117,287.90 = 47,265.40/x
  3. Step 3: Cross multiply
    84,991.15x = 117,287.90 × 47,265.40
  4. Step 4: Simplify right side
    84,991.15x = 5,543,659,266.32
  5. Step 5: Solve for x
    x = 5,543,659,266.32/84,991.15
  6. Step 6: Final answer
    x = 65,226.31

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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.