Home / 90,220.48-135,239.04-37,658.56

Finding the Fourth Proportional to 90,220.48, 135,239.04 and 37,658.56

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Solution

The fourth proportional to 90,220.48, 135,239.04 and 37,658.56 is: 56,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,220.48 : 135,239.04 = 37,658.56 : x
  2. Step 2: Convert to fraction form
    90,220.48/135,239.04 = 37,658.56/x
  3. Step 3: Cross multiply
    90,220.48x = 135,239.04 × 37,658.56
  4. Step 4: Simplify right side
    90,220.48x = 5,092,907,502.18
  5. Step 5: Solve for x
    x = 5,092,907,502.18/90,220.48
  6. Step 6: Final answer
    x = 56,449.57

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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.