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Finding the Fourth Proportional to 89,783.40, 134,675.10 and 30,604.80

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Solution

The fourth proportional to 89,783.40, 134,675.10 and 30,604.80 is: 45,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,783.40 : 134,675.10 = 30,604.80 : x
  2. Step 2: Convert to fraction form
    89,783.40/134,675.10 = 30,604.80/x
  3. Step 3: Cross multiply
    89,783.40x = 134,675.10 × 30,604.80
  4. Step 4: Simplify right side
    89,783.40x = 4,121,704,500.48
  5. Step 5: Solve for x
    x = 4,121,704,500.48/89,783.40
  6. Step 6: Final answer
    x = 45,907.20

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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.