Home / 90,638.67-135,987.05-37,355.60

Finding the Fourth Proportional to 90,638.67, 135,987.05 and 37,355.60

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Solution

The fourth proportional to 90,638.67, 135,987.05 and 37,355.60 is: 56,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,638.67 : 135,987.05 = 37,355.60 : x
  2. Step 2: Convert to fraction form
    90,638.67/135,987.05 = 37,355.60/x
  3. Step 3: Cross multiply
    90,638.67x = 135,987.05 × 37,355.60
  4. Step 4: Simplify right side
    90,638.67x = 5,079,877,658.20
  5. Step 5: Solve for x
    x = 5,079,877,658.20/90,638.67
  6. Step 6: Final answer
    x = 56,045.37

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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.