Home / 84,171.20-116,168.84-53,990.56

Finding the Fourth Proportional to 84,171.20, 116,168.84 and 53,990.56

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Solution

The fourth proportional to 84,171.20, 116,168.84 and 53,990.56 is: 74,515.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,171.20 : 116,168.84 = 53,990.56 : x
  2. Step 2: Convert to fraction form
    84,171.20/116,168.84 = 53,990.56/x
  3. Step 3: Cross multiply
    84,171.20x = 116,168.84 × 53,990.56
  4. Step 4: Simplify right side
    84,171.20x = 6,272,020,726.15
  5. Step 5: Solve for x
    x = 6,272,020,726.15/84,171.20
  6. Step 6: Final answer
    x = 74,515.04

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1.5x scale

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.