Home / 85,756.14-128,610.97-35,825.79

Finding the Fourth Proportional to 85,756.14, 128,610.97 and 35,825.79

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Solution

The fourth proportional to 85,756.14, 128,610.97 and 35,825.79 is: 53,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,756.14 : 128,610.97 = 35,825.79 : x
  2. Step 2: Convert to fraction form
    85,756.14/128,610.97 = 35,825.79/x
  3. Step 3: Cross multiply
    85,756.14x = 128,610.97 × 35,825.79
  4. Step 4: Simplify right side
    85,756.14x = 4,607,589,602.92
  5. Step 5: Solve for x
    x = 4,607,589,602.92/85,756.14
  6. Step 6: Final answer
    x = 53,728.98

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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.