Home / 80,040.13-110,455.72-43,742.30

Finding the Fourth Proportional to 80,040.13, 110,455.72 and 43,742.30

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Solution

The fourth proportional to 80,040.13, 110,455.72 and 43,742.30 is: 60,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,040.13 : 110,455.72 = 43,742.30 : x
  2. Step 2: Convert to fraction form
    80,040.13/110,455.72 = 43,742.30/x
  3. Step 3: Cross multiply
    80,040.13x = 110,455.72 × 43,742.30
  4. Step 4: Simplify right side
    80,040.13x = 4,831,586,579.32
  5. Step 5: Solve for x
    x = 4,831,586,579.32/80,040.13
  6. Step 6: Final answer
    x = 60,364.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.