Home / 78,890.13-108,868.23-50,595.75

Finding the Fourth Proportional to 78,890.13, 108,868.23 and 50,595.75

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Solution

The fourth proportional to 78,890.13, 108,868.23 and 50,595.75 is: 69,822.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,890.13 : 108,868.23 = 50,595.75 : x
  2. Step 2: Convert to fraction form
    78,890.13/108,868.23 = 50,595.75/x
  3. Step 3: Cross multiply
    78,890.13x = 108,868.23 × 50,595.75
  4. Step 4: Simplify right side
    78,890.13x = 5,508,269,748.02
  5. Step 5: Solve for x
    x = 5,508,269,748.02/78,890.13
  6. Step 6: Final answer
    x = 69,822.04

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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.