Home / 45,826.80-68,740.20-43,407.60

Finding the Fourth Proportional to 45,826.80, 68,740.20 and 43,407.60

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Solution

The fourth proportional to 45,826.80, 68,740.20 and 43,407.60 is: 65,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,826.80 : 68,740.20 = 43,407.60 : x
  2. Step 2: Convert to fraction form
    45,826.80/68,740.20 = 43,407.60/x
  3. Step 3: Cross multiply
    45,826.80x = 68,740.20 × 43,407.60
  4. Step 4: Simplify right side
    45,826.80x = 2,983,847,105.52
  5. Step 5: Solve for x
    x = 2,983,847,105.52/45,826.80
  6. Step 6: Final answer
    x = 65,111.40

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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.