Home / 88,137.22-121,584.24-56,272.60

Finding the Fourth Proportional to 88,137.22, 121,584.24 and 56,272.60

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Solution

The fourth proportional to 88,137.22, 121,584.24 and 56,272.60 is: 77,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,137.22 : 121,584.24 = 56,272.60 : x
  2. Step 2: Convert to fraction form
    88,137.22/121,584.24 = 56,272.60/x
  3. Step 3: Cross multiply
    88,137.22x = 121,584.24 × 56,272.60
  4. Step 4: Simplify right side
    88,137.22x = 6,841,861,303.82
  5. Step 5: Solve for x
    x = 6,841,861,303.82/88,137.22
  6. Step 6: Final answer
    x = 77,627.38

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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.