Home / 88,145.34-121,611.06-49,899.66

Finding the Fourth Proportional to 88,145.34, 121,611.06 and 49,899.66

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Solution

The fourth proportional to 88,145.34, 121,611.06 and 49,899.66 is: 68,844.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,145.34 : 121,611.06 = 49,899.66 : x
  2. Step 2: Convert to fraction form
    88,145.34/121,611.06 = 49,899.66/x
  3. Step 3: Cross multiply
    88,145.34x = 121,611.06 × 49,899.66
  4. Step 4: Simplify right side
    88,145.34x = 6,068,350,546.24
  5. Step 5: Solve for x
    x = 6,068,350,546.24/88,145.34
  6. Step 6: Final answer
    x = 68,844.83

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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.