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Finding the Fourth Proportional to 60,162.08, 82,969.80 and 38,919.20

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Solution

The fourth proportional to 60,162.08, 82,969.80 and 38,919.20 is: 53,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,162.08 : 82,969.80 = 38,919.20 : x
  2. Step 2: Convert to fraction form
    60,162.08/82,969.80 = 38,919.20/x
  3. Step 3: Cross multiply
    60,162.08x = 82,969.80 × 38,919.20
  4. Step 4: Simplify right side
    60,162.08x = 3,229,118,240.16
  5. Step 5: Solve for x
    x = 3,229,118,240.16/60,162.08
  6. Step 6: Final answer
    x = 53,673.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.