Home / 76,015.30-104,900.41-42,025.90

Finding the Fourth Proportional to 76,015.30, 104,900.41 and 42,025.90

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Solution

The fourth proportional to 76,015.30, 104,900.41 and 42,025.90 is: 57,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,015.30 : 104,900.41 = 42,025.90 : x
  2. Step 2: Convert to fraction form
    76,015.30/104,900.41 = 42,025.90/x
  3. Step 3: Cross multiply
    76,015.30x = 104,900.41 × 42,025.90
  4. Step 4: Simplify right side
    76,015.30x = 4,408,534,140.62
  5. Step 5: Solve for x
    x = 4,408,534,140.62/76,015.30
  6. Step 6: Final answer
    x = 57,995.35

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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.