Home / 45,020.64-67,510.44-18,709.68

Finding the Fourth Proportional to 45,020.64, 67,510.44 and 18,709.68

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Solution

The fourth proportional to 45,020.64, 67,510.44 and 18,709.68 is: 28,055.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,020.64 : 67,510.44 = 18,709.68 : x
  2. Step 2: Convert to fraction form
    45,020.64/67,510.44 = 18,709.68/x
  3. Step 3: Cross multiply
    45,020.64x = 67,510.44 × 18,709.68
  4. Step 4: Simplify right side
    45,020.64x = 1,263,098,729.06
  5. Step 5: Solve for x
    x = 1,263,098,729.06/45,020.64
  6. Step 6: Final answer
    x = 28,055.99

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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.