Home / 79,124.47-109,194.35-43,314.48

Finding the Fourth Proportional to 79,124.47, 109,194.35 and 43,314.48

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Solution

The fourth proportional to 79,124.47, 109,194.35 and 43,314.48 is: 59,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,124.47 : 109,194.35 = 43,314.48 : x
  2. Step 2: Convert to fraction form
    79,124.47/109,194.35 = 43,314.48/x
  3. Step 3: Cross multiply
    79,124.47x = 109,194.35 × 43,314.48
  4. Step 4: Simplify right side
    79,124.47x = 4,729,696,272.62
  5. Step 5: Solve for x
    x = 4,729,696,272.62/79,124.47
  6. Step 6: Final answer
    x = 59,775.39

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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.