Home / 70,401.22-105,465.74-39,141.70

Finding the Fourth Proportional to 70,401.22, 105,465.74 and 39,141.70

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Solution

The fourth proportional to 70,401.22, 105,465.74 and 39,141.70 is: 58,636.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.22 : 105,465.74 = 39,141.70 : x
  2. Step 2: Convert to fraction form
    70,401.22/105,465.74 = 39,141.70/x
  3. Step 3: Cross multiply
    70,401.22x = 105,465.74 × 39,141.70
  4. Step 4: Simplify right side
    70,401.22x = 4,128,107,895.99
  5. Step 5: Solve for x
    x = 4,128,107,895.99/70,401.22
  6. Step 6: Final answer
    x = 58,636.88

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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.