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Finding the Fourth Proportional to 74,884.84, 112,359.88 and 43,720.12

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Solution

The fourth proportional to 74,884.84, 112,359.88 and 43,720.12 is: 65,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,884.84 : 112,359.88 = 43,720.12 : x
  2. Step 2: Convert to fraction form
    74,884.84/112,359.88 = 43,720.12/x
  3. Step 3: Cross multiply
    74,884.84x = 112,359.88 × 43,720.12
  4. Step 4: Simplify right side
    74,884.84x = 4,912,387,436.79
  5. Step 5: Solve for x
    x = 4,912,387,436.79/74,884.84
  6. Step 6: Final answer
    x = 65,599.22

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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.