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Finding the Fourth Proportional to 49,482.88, 68,247.84 and 30,630.40

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Solution

The fourth proportional to 49,482.88, 68,247.84 and 30,630.40 is: 42,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,482.88 : 68,247.84 = 30,630.40 : x
  2. Step 2: Convert to fraction form
    49,482.88/68,247.84 = 30,630.40/x
  3. Step 3: Cross multiply
    49,482.88x = 68,247.84 × 30,630.40
  4. Step 4: Simplify right side
    49,482.88x = 2,090,458,638.34
  5. Step 5: Solve for x
    x = 2,090,458,638.34/49,482.88
  6. Step 6: Final answer
    x = 42,246.10

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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.