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Finding the Fourth Proportional to 35,103.80, 52,655.70 and 8,809.40

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Solution

The fourth proportional to 35,103.80, 52,655.70 and 8,809.40 is: 13,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,103.80 : 52,655.70 = 8,809.40 : x
  2. Step 2: Convert to fraction form
    35,103.80/52,655.70 = 8,809.40/x
  3. Step 3: Cross multiply
    35,103.80x = 52,655.70 × 8,809.40
  4. Step 4: Simplify right side
    35,103.80x = 463,865,123.58
  5. Step 5: Solve for x
    x = 463,865,123.58/35,103.80
  6. Step 6: Final answer
    x = 13,214.10

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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.