Home / 45,305.16-67,972.32-19,002.84

Finding the Fourth Proportional to 45,305.16, 67,972.32 and 19,002.84

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Solution

The fourth proportional to 45,305.16, 67,972.32 and 19,002.84 is: 28,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,305.16 : 67,972.32 = 19,002.84 : x
  2. Step 2: Convert to fraction form
    45,305.16/67,972.32 = 19,002.84/x
  3. Step 3: Cross multiply
    45,305.16x = 67,972.32 × 19,002.84
  4. Step 4: Simplify right side
    45,305.16x = 1,291,667,121.39
  5. Step 5: Solve for x
    x = 1,291,667,121.39/45,305.16
  6. Step 6: Final answer
    x = 28,510.38

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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.