Home / 77,132.28-115,712.88-35,015.33

Finding the Fourth Proportional to 77,132.28, 115,712.88 and 35,015.33

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Solution

The fourth proportional to 77,132.28, 115,712.88 and 35,015.33 is: 52,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,132.28 : 115,712.88 = 35,015.33 : x
  2. Step 2: Convert to fraction form
    77,132.28/115,712.88 = 35,015.33/x
  3. Step 3: Cross multiply
    77,132.28x = 115,712.88 × 35,015.33
  4. Step 4: Simplify right side
    77,132.28x = 4,051,724,678.45
  5. Step 5: Solve for x
    x = 4,051,724,678.45/77,132.28
  6. Step 6: Final answer
    x = 52,529.56

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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.