Home / 77,817.92-116,573.18-40,402.40

Finding the Fourth Proportional to 77,817.92, 116,573.18 and 40,402.40

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Solution

The fourth proportional to 77,817.92, 116,573.18 and 40,402.40 is: 60,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,817.92 : 116,573.18 = 40,402.40 : x
  2. Step 2: Convert to fraction form
    77,817.92/116,573.18 = 40,402.40/x
  3. Step 3: Cross multiply
    77,817.92x = 116,573.18 × 40,402.40
  4. Step 4: Simplify right side
    77,817.92x = 4,709,835,462.75
  5. Step 5: Solve for x
    x = 4,709,835,462.75/77,817.92
  6. Step 6: Final answer
    x = 60,523.79

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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.