Home / 77,981.40-116,900.28-25,363.80

Finding the Fourth Proportional to 77,981.40, 116,900.28 and 25,363.80

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Solution

The fourth proportional to 77,981.40, 116,900.28 and 25,363.80 is: 38,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,981.40 : 116,900.28 = 25,363.80 : x
  2. Step 2: Convert to fraction form
    77,981.40/116,900.28 = 25,363.80/x
  3. Step 3: Cross multiply
    77,981.40x = 116,900.28 × 25,363.80
  4. Step 4: Simplify right side
    77,981.40x = 2,965,035,321.86
  5. Step 5: Solve for x
    x = 2,965,035,321.86/77,981.40
  6. Step 6: Final answer
    x = 38,022.34

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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.