Home / 79,155.85-109,236.36-43,345.25

Finding the Fourth Proportional to 79,155.85, 109,236.36 and 43,345.25

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Solution

The fourth proportional to 79,155.85, 109,236.36 and 43,345.25 is: 59,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,155.85 : 109,236.36 = 43,345.25 : x
  2. Step 2: Convert to fraction form
    79,155.85/109,236.36 = 43,345.25/x
  3. Step 3: Cross multiply
    79,155.85x = 109,236.36 × 43,345.25
  4. Step 4: Simplify right side
    79,155.85x = 4,734,877,333.29
  5. Step 5: Solve for x
    x = 4,734,877,333.29/79,155.85
  6. Step 6: Final answer
    x = 59,817.15

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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.