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Finding the Fourth Proportional to 72,924.40, 109,435.20 and 33,461.20

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Solution

The fourth proportional to 72,924.40, 109,435.20 and 33,461.20 is: 50,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,924.40 : 109,435.20 = 33,461.20 : x
  2. Step 2: Convert to fraction form
    72,924.40/109,435.20 = 33,461.20/x
  3. Step 3: Cross multiply
    72,924.40x = 109,435.20 × 33,461.20
  4. Step 4: Simplify right side
    72,924.40x = 3,661,833,114.24
  5. Step 5: Solve for x
    x = 3,661,833,114.24/72,924.40
  6. Step 6: Final answer
    x = 50,214.10

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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.