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Finding the Fourth Proportional to 89,030.20, 133,620.90 and 36,477.40

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Solution

The fourth proportional to 89,030.20, 133,620.90 and 36,477.40 is: 54,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.20 : 133,620.90 = 36,477.40 : x
  2. Step 2: Convert to fraction form
    89,030.20/133,620.90 = 36,477.40/x
  3. Step 3: Cross multiply
    89,030.20x = 133,620.90 × 36,477.40
  4. Step 4: Simplify right side
    89,030.20x = 4,874,143,017.66
  5. Step 5: Solve for x
    x = 4,874,143,017.66/89,030.20
  6. Step 6: Final answer
    x = 54,747.07

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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.