Home / 75,390.09-113,085.38-25,470.60

Finding the Fourth Proportional to 75,390.09, 113,085.38 and 25,470.60

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Solution

The fourth proportional to 75,390.09, 113,085.38 and 25,470.60 is: 38,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,390.09 : 113,085.38 = 25,470.60 : x
  2. Step 2: Convert to fraction form
    75,390.09/113,085.38 = 25,470.60/x
  3. Step 3: Cross multiply
    75,390.09x = 113,085.38 × 25,470.60
  4. Step 4: Simplify right side
    75,390.09x = 2,880,352,479.83
  5. Step 5: Solve for x
    x = 2,880,352,479.83/75,390.09
  6. Step 6: Final answer
    x = 38,205.98

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1.5x scale

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.