Home / 88,122.75-121,558.48-56,255.73

Finding the Fourth Proportional to 88,122.75, 121,558.48 and 56,255.73

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Solution

The fourth proportional to 88,122.75, 121,558.48 and 56,255.73 is: 77,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,122.75 : 121,558.48 = 56,255.73 : x
  2. Step 2: Convert to fraction form
    88,122.75/121,558.48 = 56,255.73/x
  3. Step 3: Cross multiply
    88,122.75x = 121,558.48 × 56,255.73
  4. Step 4: Simplify right side
    88,122.75x = 6,838,361,030.09
  5. Step 5: Solve for x
    x = 6,838,361,030.09/88,122.75
  6. Step 6: Final answer
    x = 77,600.40

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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.