Home / 76,396.46-105,425.52-42,402.96

Finding the Fourth Proportional to 76,396.46, 105,425.52 and 42,402.96

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Solution

The fourth proportional to 76,396.46, 105,425.52 and 42,402.96 is: 58,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,396.46 : 105,425.52 = 42,402.96 : x
  2. Step 2: Convert to fraction form
    76,396.46/105,425.52 = 42,402.96/x
  3. Step 3: Cross multiply
    76,396.46x = 105,425.52 × 42,402.96
  4. Step 4: Simplify right side
    76,396.46x = 4,470,354,107.54
  5. Step 5: Solve for x
    x = 4,470,354,107.54/76,396.46
  6. Step 6: Final answer
    x = 58,515.20

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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.