Home / 88,047.52-121,504.40-50,320.80

Finding the Fourth Proportional to 88,047.52, 121,504.40 and 50,320.80

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Solution

The fourth proportional to 88,047.52, 121,504.40 and 50,320.80 is: 69,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,047.52 : 121,504.40 = 50,320.80 : x
  2. Step 2: Convert to fraction form
    88,047.52/121,504.40 = 50,320.80/x
  3. Step 3: Cross multiply
    88,047.52x = 121,504.40 × 50,320.80
  4. Step 4: Simplify right side
    88,047.52x = 6,114,198,611.52
  5. Step 5: Solve for x
    x = 6,114,198,611.52/88,047.52
  6. Step 6: Final answer
    x = 69,442.03

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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.