Home / 77,990.04-116,994.78-30,606.66

Finding the Fourth Proportional to 77,990.04, 116,994.78 and 30,606.66

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Solution

The fourth proportional to 77,990.04, 116,994.78 and 30,606.66 is: 45,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,990.04 : 116,994.78 = 30,606.66 : x
  2. Step 2: Convert to fraction form
    77,990.04/116,994.78 = 30,606.66/x
  3. Step 3: Cross multiply
    77,990.04x = 116,994.78 × 30,606.66
  4. Step 4: Simplify right side
    77,990.04x = 3,580,819,453.23
  5. Step 5: Solve for x
    x = 3,580,819,453.23/77,990.04
  6. Step 6: Final answer
    x = 45,913.80

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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.