Home / 78,887.13-108,864.09-50,592.75

Finding the Fourth Proportional to 78,887.13, 108,864.09 and 50,592.75

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Solution

The fourth proportional to 78,887.13, 108,864.09 and 50,592.75 is: 69,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,887.13 : 108,864.09 = 50,592.75 : x
  2. Step 2: Convert to fraction form
    78,887.13/108,864.09 = 50,592.75/x
  3. Step 3: Cross multiply
    78,887.13x = 108,864.09 × 50,592.75
  4. Step 4: Simplify right side
    78,887.13x = 5,507,733,689.35
  5. Step 5: Solve for x
    x = 5,507,733,689.35/78,887.13
  6. Step 6: Final answer
    x = 69,817.90

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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.