Home / 92,786.21-128,045.31-50,344.74

Finding the Fourth Proportional to 92,786.21, 128,045.31 and 50,344.74

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Solution

The fourth proportional to 92,786.21, 128,045.31 and 50,344.74 is: 69,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,786.21 : 128,045.31 = 50,344.74 : x
  2. Step 2: Convert to fraction form
    92,786.21/128,045.31 = 50,344.74/x
  3. Step 3: Cross multiply
    92,786.21x = 128,045.31 × 50,344.74
  4. Step 4: Simplify right side
    92,786.21x = 6,446,407,651.38
  5. Step 5: Solve for x
    x = 6,446,407,651.38/92,786.21
  6. Step 6: Final answer
    x = 69,475.92

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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.