Home / 75,584.40-113,376.60-25,720.80

Finding the Fourth Proportional to 75,584.40, 113,376.60 and 25,720.80

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Solution

The fourth proportional to 75,584.40, 113,376.60 and 25,720.80 is: 38,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,584.40 : 113,376.60 = 25,720.80 : x
  2. Step 2: Convert to fraction form
    75,584.40/113,376.60 = 25,720.80/x
  3. Step 3: Cross multiply
    75,584.40x = 113,376.60 × 25,720.80
  4. Step 4: Simplify right side
    75,584.40x = 2,916,136,853.28
  5. Step 5: Solve for x
    x = 2,916,136,853.28/75,584.40
  6. Step 6: Final answer
    x = 38,581.20

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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.