Home / 45,605.28-68,407.11-14,440.62

Finding the Fourth Proportional to 45,605.28, 68,407.11 and 14,440.62

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Solution

The fourth proportional to 45,605.28, 68,407.11 and 14,440.62 is: 21,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,605.28 : 68,407.11 = 14,440.62 : x
  2. Step 2: Convert to fraction form
    45,605.28/68,407.11 = 14,440.62/x
  3. Step 3: Cross multiply
    45,605.28x = 68,407.11 × 14,440.62
  4. Step 4: Simplify right side
    45,605.28x = 987,841,080.81
  5. Step 5: Solve for x
    x = 987,841,080.81/45,605.28
  6. Step 6: Final answer
    x = 21,660.67

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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.