Home / 88,208.20-121,700.49-49,961.67

Finding the Fourth Proportional to 88,208.20, 121,700.49 and 49,961.67

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Solution

The fourth proportional to 88,208.20, 121,700.49 and 49,961.67 is: 68,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,208.20 : 121,700.49 = 49,961.67 : x
  2. Step 2: Convert to fraction form
    88,208.20/121,700.49 = 49,961.67/x
  3. Step 3: Cross multiply
    88,208.20x = 121,700.49 × 49,961.67
  4. Step 4: Simplify right side
    88,208.20x = 6,080,359,357.52
  5. Step 5: Solve for x
    x = 6,080,359,357.52/88,208.20
  6. Step 6: Final answer
    x = 68,931.91

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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.