Home / 88,989.82-122,794.08-51,256.78

Finding the Fourth Proportional to 88,989.82, 122,794.08 and 51,256.78

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Solution

The fourth proportional to 88,989.82, 122,794.08 and 51,256.78 is: 70,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,989.82 : 122,794.08 = 51,256.78 : x
  2. Step 2: Convert to fraction form
    88,989.82/122,794.08 = 51,256.78/x
  3. Step 3: Cross multiply
    88,989.82x = 122,794.08 × 51,256.78
  4. Step 4: Simplify right side
    88,989.82x = 6,294,029,143.86
  5. Step 5: Solve for x
    x = 6,294,029,143.86/88,989.82
  6. Step 6: Final answer
    x = 70,727.52

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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.