Home / 77,207.28-115,790.05-27,280.77

Finding the Fourth Proportional to 77,207.28, 115,790.05 and 27,280.77

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Solution

The fourth proportional to 77,207.28, 115,790.05 and 27,280.77 is: 40,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,207.28 : 115,790.05 = 27,280.77 : x
  2. Step 2: Convert to fraction form
    77,207.28/115,790.05 = 27,280.77/x
  3. Step 3: Cross multiply
    77,207.28x = 115,790.05 × 27,280.77
  4. Step 4: Simplify right side
    77,207.28x = 3,158,841,722.34
  5. Step 5: Solve for x
    x = 3,158,841,722.34/77,207.28
  6. Step 6: Final answer
    x = 40,913.78

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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.