Home / 77,712.87-116,416.76-40,297.40

Finding the Fourth Proportional to 77,712.87, 116,416.76 and 40,297.40

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Solution

The fourth proportional to 77,712.87, 116,416.76 and 40,297.40 is: 60,367.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,712.87 : 116,416.76 = 40,297.40 : x
  2. Step 2: Convert to fraction form
    77,712.87/116,416.76 = 40,297.40/x
  3. Step 3: Cross multiply
    77,712.87x = 116,416.76 × 40,297.40
  4. Step 4: Simplify right side
    77,712.87x = 4,691,292,624.09
  5. Step 5: Solve for x
    x = 4,691,292,624.09/77,712.87
  6. Step 6: Final answer
    x = 60,367.00

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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.