Home / 79,130.15-109,202.06-43,323.49

Finding the Fourth Proportional to 79,130.15, 109,202.06 and 43,323.49

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Solution

The fourth proportional to 79,130.15, 109,202.06 and 43,323.49 is: 59,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.15 : 109,202.06 = 43,323.49 : x
  2. Step 2: Convert to fraction form
    79,130.15/109,202.06 = 43,323.49/x
  3. Step 3: Cross multiply
    79,130.15x = 109,202.06 × 43,323.49
  4. Step 4: Simplify right side
    79,130.15x = 4,731,014,354.39
  5. Step 5: Solve for x
    x = 4,731,014,354.39/79,130.15
  6. Step 6: Final answer
    x = 59,787.76

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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.