Home / 77,005.12-115,440.20-37,004.19

Finding the Fourth Proportional to 77,005.12, 115,440.20 and 37,004.19

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Solution

The fourth proportional to 77,005.12, 115,440.20 and 37,004.19 is: 55,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,005.12 : 115,440.20 = 37,004.19 : x
  2. Step 2: Convert to fraction form
    77,005.12/115,440.20 = 37,004.19/x
  3. Step 3: Cross multiply
    77,005.12x = 115,440.20 × 37,004.19
  4. Step 4: Simplify right side
    77,005.12x = 4,271,770,517.24
  5. Step 5: Solve for x
    x = 4,271,770,517.24/77,005.12
  6. Step 6: Final answer
    x = 55,473.85

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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.