Home / 79,239.12-109,350.82-43,428.32

Finding the Fourth Proportional to 79,239.12, 109,350.82 and 43,428.32

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Solution

The fourth proportional to 79,239.12, 109,350.82 and 43,428.32 is: 59,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.12 : 109,350.82 = 43,428.32 : x
  2. Step 2: Convert to fraction form
    79,239.12/109,350.82 = 43,428.32/x
  3. Step 3: Cross multiply
    79,239.12x = 109,350.82 × 43,428.32
  4. Step 4: Simplify right side
    79,239.12x = 4,748,922,403.22
  5. Step 5: Solve for x
    x = 4,748,922,403.22/79,239.12
  6. Step 6: Final answer
    x = 59,931.54

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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.