Home / 45,321.16-68,033.58-42,729.16

Finding the Fourth Proportional to 45,321.16, 68,033.58 and 42,729.16

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Solution

The fourth proportional to 45,321.16, 68,033.58 and 42,729.16 is: 64,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,321.16 : 68,033.58 = 42,729.16 : x
  2. Step 2: Convert to fraction form
    45,321.16/68,033.58 = 42,729.16/x
  3. Step 3: Cross multiply
    45,321.16x = 68,033.58 × 42,729.16
  4. Step 4: Simplify right side
    45,321.16x = 2,907,017,725.19
  5. Step 5: Solve for x
    x = 2,907,017,725.19/45,321.16
  6. Step 6: Final answer
    x = 64,142.62

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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.