Home / 80,903.40-121,335.66-41,440.20

Finding the Fourth Proportional to 80,903.40, 121,335.66 and 41,440.20

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Solution

The fourth proportional to 80,903.40, 121,335.66 and 41,440.20 is: 62,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,903.40 : 121,335.66 = 41,440.20 : x
  2. Step 2: Convert to fraction form
    80,903.40/121,335.66 = 41,440.20/x
  3. Step 3: Cross multiply
    80,903.40x = 121,335.66 × 41,440.20
  4. Step 4: Simplify right side
    80,903.40x = 5,028,174,017.53
  5. Step 5: Solve for x
    x = 5,028,174,017.53/80,903.40
  6. Step 6: Final answer
    x = 62,150.34

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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.