Home / 90,387.09-135,437.94-73,437.44

Finding the Fourth Proportional to 90,387.09, 135,437.94 and 73,437.44

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Solution

The fourth proportional to 90,387.09, 135,437.94 and 73,437.44 is: 110,040.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.09 : 135,437.94 = 73,437.44 : x
  2. Step 2: Convert to fraction form
    90,387.09/135,437.94 = 73,437.44/x
  3. Step 3: Cross multiply
    90,387.09x = 135,437.94 × 73,437.44
  4. Step 4: Simplify right side
    90,387.09x = 9,946,214,915.28
  5. Step 5: Solve for x
    x = 9,946,214,915.28/90,387.09
  6. Step 6: Final answer
    x = 110,040.22

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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.