Home / 92,759.72-128,007.42-50,317.88

Finding the Fourth Proportional to 92,759.72, 128,007.42 and 50,317.88

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Solution

The fourth proportional to 92,759.72, 128,007.42 and 50,317.88 is: 69,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,759.72 : 128,007.42 = 50,317.88 : x
  2. Step 2: Convert to fraction form
    92,759.72/128,007.42 = 50,317.88/x
  3. Step 3: Cross multiply
    92,759.72x = 128,007.42 × 50,317.88
  4. Step 4: Simplify right side
    92,759.72x = 6,441,061,998.67
  5. Step 5: Solve for x
    x = 6,441,061,998.67/92,759.72
  6. Step 6: Final answer
    x = 69,438.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.