Home / 90,175.86-124,452-51,936.72

Finding the Fourth Proportional to 90,175.86, 124,452 and 51,936.72

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Solution

The fourth proportional to 90,175.86, 124,452 and 51,936.72 is: 71,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,175.86 : 124,452 = 51,936.72 : x
  2. Step 2: Convert to fraction form
    90,175.86/124,452 = 51,936.72/x
  3. Step 3: Cross multiply
    90,175.86x = 124,452 × 51,936.72
  4. Step 4: Simplify right side
    90,175.86x = 6,463,628,677.44
  5. Step 5: Solve for x
    x = 6,463,628,677.44/90,175.86
  6. Step 6: Final answer
    x = 71,678.04

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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.