Home / 90,813.88-125,321.20-52,575.05

Finding the Fourth Proportional to 90,813.88, 125,321.20 and 52,575.05

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Solution

The fourth proportional to 90,813.88, 125,321.20 and 52,575.05 is: 72,552.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.88 : 125,321.20 = 52,575.05 : x
  2. Step 2: Convert to fraction form
    90,813.88/125,321.20 = 52,575.05/x
  3. Step 3: Cross multiply
    90,813.88x = 125,321.20 × 52,575.05
  4. Step 4: Simplify right side
    90,813.88x = 6,588,768,356.06
  5. Step 5: Solve for x
    x = 6,588,768,356.06/90,813.88
  6. Step 6: Final answer
    x = 72,552.44

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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.