Home / 77,925.20-116,945.40-51,621.20

Finding the Fourth Proportional to 77,925.20, 116,945.40 and 51,621.20

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Solution

The fourth proportional to 77,925.20, 116,945.40 and 51,621.20 is: 77,469.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,925.20 : 116,945.40 = 51,621.20 : x
  2. Step 2: Convert to fraction form
    77,925.20/116,945.40 = 51,621.20/x
  3. Step 3: Cross multiply
    77,925.20x = 116,945.40 × 51,621.20
  4. Step 4: Simplify right side
    77,925.20x = 6,036,861,882.48
  5. Step 5: Solve for x
    x = 6,036,861,882.48/77,925.20
  6. Step 6: Final answer
    x = 77,469.96

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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.