Home / 79,146.46-109,222.12-43,338.66

Finding the Fourth Proportional to 79,146.46, 109,222.12 and 43,338.66

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Solution

The fourth proportional to 79,146.46, 109,222.12 and 43,338.66 is: 59,807.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,146.46 : 109,222.12 = 43,338.66 : x
  2. Step 2: Convert to fraction form
    79,146.46/109,222.12 = 43,338.66/x
  3. Step 3: Cross multiply
    79,146.46x = 109,222.12 × 43,338.66
  4. Step 4: Simplify right side
    79,146.46x = 4,733,540,323.16
  5. Step 5: Solve for x
    x = 4,733,540,323.16/79,146.46
  6. Step 6: Final answer
    x = 59,807.35

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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.