Home / 79,281.07-109,407.03-43,470.97

Finding the Fourth Proportional to 79,281.07, 109,407.03 and 43,470.97

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Solution

The fourth proportional to 79,281.07, 109,407.03 and 43,470.97 is: 59,989.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.07 : 109,407.03 = 43,470.97 : x
  2. Step 2: Convert to fraction form
    79,281.07/109,407.03 = 43,470.97/x
  3. Step 3: Cross multiply
    79,281.07x = 109,407.03 × 43,470.97
  4. Step 4: Simplify right side
    79,281.07x = 4,756,029,718.92
  5. Step 5: Solve for x
    x = 4,756,029,718.92/79,281.07
  6. Step 6: Final answer
    x = 59,989.47

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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.