Home / 88,276.88-121,820.64-47,991.64

Finding the Fourth Proportional to 88,276.88, 121,820.64 and 47,991.64

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Solution

The fourth proportional to 88,276.88, 121,820.64 and 47,991.64 is: 66,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,276.88 : 121,820.64 = 47,991.64 : x
  2. Step 2: Convert to fraction form
    88,276.88/121,820.64 = 47,991.64/x
  3. Step 3: Cross multiply
    88,276.88x = 121,820.64 × 47,991.64
  4. Step 4: Simplify right side
    88,276.88x = 5,846,372,299.45
  5. Step 5: Solve for x
    x = 5,846,372,299.45/88,276.88
  6. Step 6: Final answer
    x = 66,227.67

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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.