Home / 90,076.82-135,110.39-45,702.45

Finding the Fourth Proportional to 90,076.82, 135,110.39 and 45,702.45

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Solution

The fourth proportional to 90,076.82, 135,110.39 and 45,702.45 is: 68,551.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,076.82 : 135,110.39 = 45,702.45 : x
  2. Step 2: Convert to fraction form
    90,076.82/135,110.39 = 45,702.45/x
  3. Step 3: Cross multiply
    90,076.82x = 135,110.39 × 45,702.45
  4. Step 4: Simplify right side
    90,076.82x = 6,174,875,614.94
  5. Step 5: Solve for x
    x = 6,174,875,614.94/90,076.82
  6. Step 6: Final answer
    x = 68,551.22

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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.