Home / 77,165.28-115,748.89-27,210.34

Finding the Fourth Proportional to 77,165.28, 115,748.89 and 27,210.34

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Solution

The fourth proportional to 77,165.28, 115,748.89 and 27,210.34 is: 40,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,165.28 : 115,748.89 = 27,210.34 : x
  2. Step 2: Convert to fraction form
    77,165.28/115,748.89 = 27,210.34/x
  3. Step 3: Cross multiply
    77,165.28x = 115,748.89 × 27,210.34
  4. Step 4: Simplify right side
    77,165.28x = 3,149,567,091.99
  5. Step 5: Solve for x
    x = 3,149,567,091.99/77,165.28
  6. Step 6: Final answer
    x = 40,815.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.