Home / 79,428.06-109,611.43-43,618.32

Finding the Fourth Proportional to 79,428.06, 109,611.43 and 43,618.32

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Solution

The fourth proportional to 79,428.06, 109,611.43 and 43,618.32 is: 60,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,428.06 : 109,611.43 = 43,618.32 : x
  2. Step 2: Convert to fraction form
    79,428.06/109,611.43 = 43,618.32/x
  3. Step 3: Cross multiply
    79,428.06x = 109,611.43 × 43,618.32
  4. Step 4: Simplify right side
    79,428.06x = 4,781,066,429.40
  5. Step 5: Solve for x
    x = 4,781,066,429.40/79,428.06
  6. Step 6: Final answer
    x = 60,193.67

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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.