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Finding the Fourth Proportional to 82,895.70, 124,344.36 and 45,435.36

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Solution

The fourth proportional to 82,895.70, 124,344.36 and 45,435.36 is: 68,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,895.70 : 124,344.36 = 45,435.36 : x
  2. Step 2: Convert to fraction form
    82,895.70/124,344.36 = 45,435.36/x
  3. Step 3: Cross multiply
    82,895.70x = 124,344.36 × 45,435.36
  4. Step 4: Simplify right side
    82,895.70x = 5,649,630,760.57
  5. Step 5: Solve for x
    x = 5,649,630,760.57/82,895.70
  6. Step 6: Final answer
    x = 68,153.48

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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.