Home / 85,850.28-128,807.82-35,964

Finding the Fourth Proportional to 85,850.28, 128,807.82 and 35,964

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Solution

The fourth proportional to 85,850.28, 128,807.82 and 35,964 is: 53,959.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,850.28 : 128,807.82 = 35,964 : x
  2. Step 2: Convert to fraction form
    85,850.28/128,807.82 = 35,964/x
  3. Step 3: Cross multiply
    85,850.28x = 128,807.82 × 35,964
  4. Step 4: Simplify right side
    85,850.28x = 4,632,444,438.48
  5. Step 5: Solve for x
    x = 4,632,444,438.48/85,850.28
  6. Step 6: Final answer
    x = 53,959.57

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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.