Home / 43,155.60-64,733.40-25,645.20

Finding the Fourth Proportional to 43,155.60, 64,733.40 and 25,645.20

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Solution

The fourth proportional to 43,155.60, 64,733.40 and 25,645.20 is: 38,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,155.60 : 64,733.40 = 25,645.20 : x
  2. Step 2: Convert to fraction form
    43,155.60/64,733.40 = 25,645.20/x
  3. Step 3: Cross multiply
    43,155.60x = 64,733.40 × 25,645.20
  4. Step 4: Simplify right side
    43,155.60x = 1,660,100,989.68
  5. Step 5: Solve for x
    x = 1,660,100,989.68/43,155.60
  6. Step 6: Final answer
    x = 38,467.80

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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.