Home / 79,680.20-119,261.10-73,459.40

Finding the Fourth Proportional to 79,680.20, 119,261.10 and 73,459.40

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Solution

The fourth proportional to 79,680.20, 119,261.10 and 73,459.40 is: 109,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,680.20 : 119,261.10 = 73,459.40 : x
  2. Step 2: Convert to fraction form
    79,680.20/119,261.10 = 73,459.40/x
  3. Step 3: Cross multiply
    79,680.20x = 119,261.10 × 73,459.40
  4. Step 4: Simplify right side
    79,680.20x = 8,760,848,849.34
  5. Step 5: Solve for x
    x = 8,760,848,849.34/79,680.20
  6. Step 6: Final answer
    x = 109,950.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.