Home / 89,394.38-134,089.49-45,009.21

Finding the Fourth Proportional to 89,394.38, 134,089.49 and 45,009.21

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Solution

The fourth proportional to 89,394.38, 134,089.49 and 45,009.21 is: 67,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,394.38 : 134,089.49 = 45,009.21 : x
  2. Step 2: Convert to fraction form
    89,394.38/134,089.49 = 45,009.21/x
  3. Step 3: Cross multiply
    89,394.38x = 134,089.49 × 45,009.21
  4. Step 4: Simplify right side
    89,394.38x = 6,035,261,789.16
  5. Step 5: Solve for x
    x = 6,035,261,789.16/89,394.38
  6. Step 6: Final answer
    x = 67,512.77

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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.