Home / 74,025.20-111,037.80-42,402.80

Finding the Fourth Proportional to 74,025.20, 111,037.80 and 42,402.80

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Solution

The fourth proportional to 74,025.20, 111,037.80 and 42,402.80 is: 63,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,025.20 : 111,037.80 = 42,402.80 : x
  2. Step 2: Convert to fraction form
    74,025.20/111,037.80 = 42,402.80/x
  3. Step 3: Cross multiply
    74,025.20x = 111,037.80 × 42,402.80
  4. Step 4: Simplify right side
    74,025.20x = 4,708,313,625.84
  5. Step 5: Solve for x
    x = 4,708,313,625.84/74,025.20
  6. Step 6: Final answer
    x = 63,604.20

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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.