Home / 40,170.80-60,256.20-38,464.40

Finding the Fourth Proportional to 40,170.80, 60,256.20 and 38,464.40

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Solution

The fourth proportional to 40,170.80, 60,256.20 and 38,464.40 is: 57,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,170.80 : 60,256.20 = 38,464.40 : x
  2. Step 2: Convert to fraction form
    40,170.80/60,256.20 = 38,464.40/x
  3. Step 3: Cross multiply
    40,170.80x = 60,256.20 × 38,464.40
  4. Step 4: Simplify right side
    40,170.80x = 2,317,718,579.28
  5. Step 5: Solve for x
    x = 2,317,718,579.28/40,170.80
  6. Step 6: Final answer
    x = 57,696.60

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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.