Home / 79,738.60-119,435.10-65,914.60

Finding the Fourth Proportional to 79,738.60, 119,435.10 and 65,914.60

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Solution

The fourth proportional to 79,738.60, 119,435.10 and 65,914.60 is: 98,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,738.60 : 119,435.10 = 65,914.60 : x
  2. Step 2: Convert to fraction form
    79,738.60/119,435.10 = 65,914.60/x
  3. Step 3: Cross multiply
    79,738.60x = 119,435.10 × 65,914.60
  4. Step 4: Simplify right side
    79,738.60x = 7,872,516,842.46
  5. Step 5: Solve for x
    x = 7,872,516,842.46/79,738.60
  6. Step 6: Final answer
    x = 98,729.06

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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.