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Finding the Fourth Proportional to 45,462.28, 68,210.16 and 19,164.28

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Solution

The fourth proportional to 45,462.28, 68,210.16 and 19,164.28 is: 28,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,462.28 : 68,210.16 = 19,164.28 : x
  2. Step 2: Convert to fraction form
    45,462.28/68,210.16 = 19,164.28/x
  3. Step 3: Cross multiply
    45,462.28x = 68,210.16 × 19,164.28
  4. Step 4: Simplify right side
    45,462.28x = 1,307,198,605.08
  5. Step 5: Solve for x
    x = 1,307,198,605.08/45,462.28
  6. Step 6: Final answer
    x = 28,753.48

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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.