Home / 79,639.68-119,460.48-52,112.64

Finding the Fourth Proportional to 79,639.68, 119,460.48 and 52,112.64

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Solution

The fourth proportional to 79,639.68, 119,460.48 and 52,112.64 is: 78,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,639.68 : 119,460.48 = 52,112.64 : x
  2. Step 2: Convert to fraction form
    79,639.68/119,460.48 = 52,112.64/x
  3. Step 3: Cross multiply
    79,639.68x = 119,460.48 × 52,112.64
  4. Step 4: Simplify right side
    79,639.68x = 6,225,400,988.47
  5. Step 5: Solve for x
    x = 6,225,400,988.47/79,639.68
  6. Step 6: Final answer
    x = 78,169.59

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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.