Home / 77,205.76-115,821.70-26,602.83

Finding the Fourth Proportional to 77,205.76, 115,821.70 and 26,602.83

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Solution

The fourth proportional to 77,205.76, 115,821.70 and 26,602.83 is: 39,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,205.76 : 115,821.70 = 26,602.83 : x
  2. Step 2: Convert to fraction form
    77,205.76/115,821.70 = 26,602.83/x
  3. Step 3: Cross multiply
    77,205.76x = 115,821.70 × 26,602.83
  4. Step 4: Simplify right side
    77,205.76x = 3,081,184,928.90
  5. Step 5: Solve for x
    x = 3,081,184,928.90/77,205.76
  6. Step 6: Final answer
    x = 39,908.75

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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.