Home / 76,920.66-106,198.56-58,981.18

Finding the Fourth Proportional to 76,920.66, 106,198.56 and 58,981.18

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Solution

The fourth proportional to 76,920.66, 106,198.56 and 58,981.18 is: 81,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,920.66 : 106,198.56 = 58,981.18 : x
  2. Step 2: Convert to fraction form
    76,920.66/106,198.56 = 58,981.18/x
  3. Step 3: Cross multiply
    76,920.66x = 106,198.56 × 58,981.18
  4. Step 4: Simplify right side
    76,920.66x = 6,263,716,383.10
  5. Step 5: Solve for x
    x = 6,263,716,383.10/76,920.66
  6. Step 6: Final answer
    x = 81,430.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.